Published by the American Society of Mammalogists. ) with longer legs and ears. 2 cm). It is similar to species like the black-tailed jackrabbit and white-sided jackrabbit. Researchers at the University of Montana have discovered that genetic adaptation in white-tailed jackrabbits may help them survive the effects of climate change. The black-tailed jackrabbits (Lepus californicus) most identifying feature is its huge ears. We know first-hand some of the characteristics that make mammals unique, like having hair, being able to sweat, and. The white-tailed jackrabbit (Lepus townsendii), also known as the prairie hare, is a species of hare native to western North America. 2018; Brown et al. This applies to the black-tailed jackrabbit as well, studying the species' behaviour gives us knowledge about the animal but also the Chapparal biome as a whole. Merriam’s Kangaroo Rat. leverets The black-tailed jackrabbit is not really a rabbit, it is a hare. Its fur is buff-colored to blend in with the arid environment. and ASIP between white-tailed jackrabbits and (C) black-tailed jackrabbits or (D. animals behavioral adaptation is when animal behaves a surtin wayBehavioral adaptations of an animal are the things an animal does to survive. Previous investigations. 0 in), and a weight between 2. Its body length ranges from 52 to 58 cm (22 in) long and its tail can be 5 to 10 cm (3 in) long. What eats a jackrabbit in the desert? Jackrabbit Examples - Rarely aggression between species members, fighting between males over a female may occur during breeding season. 4 lb) can be successfully taken by a pack of harris hawks. Compare the images of a black-tailed jackrabbit (Lepus californicus) and a snowshoe hare (Lepus americanus) and answer the questions below. S. Because of its greater size and abundance, the jackrabbit is the most destructive. However, by 1926, Burnett (1926) reported that in the preceding 10 or 12 years, black -tailed jackrabbits had become the most abundant speciesBlack-tailed Jackrabbit: A species of hare native to the western US and Mexico. overview characteristics geography timeline information & media contact. Jack Rabbit - Seabreeze - was created in 1920. Narrow-gauge Mule. In this article, we will explore the various adaptations of the jackrabbit and delve into its role in the ecosystem. Here are eight examples. These rabbits maintain their body temperature by releasing heat through their long ears. In addition to long ears and feet, this jackrabbit has especially. Black-tailed Jackrabbit Snowshoe Hare a) Based on what you can see in the images, which of these hares is adapted for a. Tehran Weegy: Dubai has caused the most damage to its. 0 kilograms; and 2. This is a great way to learn about slot strategy. Posted by on febr. Adaptations. 2-2. The Black-tailed Jackrabbit is a member of the hare family. Black-tailed jackrabbits have grey-brown coats, they moult once a year and do not acquire a white coat in winter. Almost everyone is familiar with the camel’s adaptation for desert survival - the hump. A bird's leg temperature may increase 15 F (9. Male jackrabbits can weigh from 9-11 pounds, and females 11-13 pounds. Alison Hawkes. These adaptations are a direct result of evolution. It is about 18-24 inches long and weighs four to eight pounds. It does not have to sweat or pant, both of which shed water – important. West of the Cascade Range, the dorsal hairs of this rabbit have gray blending to dark-brown or blackish base followed by a narrow band of buff and a black. , 2017), and so the decline of white-tailed jackrabbitsThe black-tailed jackrabbit lives in the desert. heat-dispersal abilities and adaptations to a hot, arid environment. Over a period of time, one characteristic (such as spots) is naturally advantageous over the other (no spots) due to the. Kangaroo Rat (Ord's) Koala. Jackrabbit (White-tailed) Jaguar. 2008), Idaho (French et al. During summer they feed on grasses while in winter they make use of shrubs. Their fur is generally a dark brown or gray salt-and-pepper color, with a signature black stripe across the back and onto the tail. Black-tailed jack rabbit populations are known to fluctuate widely over much of the species' range. Hares and rabbits ( Leporidae) together form a group of lagomorphs that includes about 50 species of hares, jackrabbits, cottontails and rabbits. alleni was absent from the hottest and most-arid portions of the Sonoran Desert where the sole representative of the genus is the black-tailed jackrabbit, Lepus californicus. Weegy. Study with Quizlet and memorize flashcards containing terms like Camel humps are an adaptation for _______. It has peppery brown fur and a black stripe that runs down its back. Mammals make up less than 1% of all animals on earth, but they include some of the most well-known species. TRANSMISSION. Actually a hare, the speedy critter (it can move at 40 mph) is a resident of the Amon Basin, a major watershed of the upper Columbia. The black-tailed jackrabbit size measures up to 18-25. The black-tailed jackrabbit is somewhat smaller, weighing only 3 to 7 pounds. On upland sites. Even adult black-tailed jackrabbits weighing more than 2,000 g (4. alleni was absent from the hottest and most-arid portions of the Sonoran Desert where the sole representative of the genus is the black-tailed jackrabbit, Lepus californicus. as a white paste c. Alison Hawkes was a Bay Nature editor from 2011-2017. Get an answer. Highly cursorial animals are specialised for fast, sustained running via specific morphological adaptations, notably including changes in limb segment length and mechanical advantage. Size: Black-tailed jackrabbits are large weighing 3-6 pounds and around 2 feet long. only in the morning, Organisms that live in desert and desert-scrub biomes have. The black-tailed jackrabbit (Lepus californicus), also known as the American desert hare, is a common hare of the western United States and Mexico, where it is found at elevations from sea level up to 10,000 ft (3,000 m). Life Span. During the daylight hours they will lie crouched in shady areas, in tall grass and weeds. Location of black-tailed jackrabbit (Lepus californicus) specimens from north Río Conchos (1-3; Chihuahua), south Río Nazas (4-8; Durango), and four groups (9-30; A-D) from the Baja California. I was walking my dogs along a snow-covered dirt road, bundled up since the temperature was in the teens. The black-tailed jackrabbit, Lepus californicus, is widely distributed across México and the United States (Flinders and Chapman 2003; Beever et al. The Black-tailed Jackrabbit is a Moderate-sized animal of the Rabbit species, featured in Red Dead Redemption 2 and Red Dead Online. Male jackrabbits can weigh from 9-11 pounds, and females 11-13 pounds. They are one of five species of jackrabbit that inhabit different regions of North America. The white-tailed jackrabbit is actually a hare, not a rabbit. They exhibit feet covered with fur to protect themselves from the hot desert sand. The largest species of jackrabbit is the white-tailed jackrabbit. Figure 8. Jackrabbits are not actually rabbits but they are hares. Here in the desert near Tucson, rainfall averages. The black-tailed jackrabbits (Lepus californicus) most identifying feature is its huge ears. alleni was absent from the hottest and most-arid portions of the Sonoran Desert where the sole representative of the genus is the black-tailed jackrabbit, Lepus californicus. The common name antelope jackrabbit is derived from the white flashing behavior of American pronghorns (Antilocapra americana) when they run. 8. Hare is the common name for small, fast-running mammals in the genus Lepus of the family Leporidae and order Lagormopha, characterized by long ears and legs, large hind feet, a short and bushy tail, and young born with fur and with eyes open. Adaptation to flooded soils includes aerenchyma formation to transport oxygen to the roots. The physical and behavioral adaptations does the Black-tailed Jackrabbit have that help it survive in the chaparral biome is: Feet and fur. Certainly a useful. called it a “jackass rabbit” because its enormous ears look like those of a donkey. Most are fast runners with long, powerful hind legs, and large. This hare has large feet resembling a snowshoe. How has this adaptation prevented the species from becoming extinct? it prevents them from getting lost when they burrow. Females are from 1646 to 2668 grams, averaging 2161 g. 1-13 cm) in size. The snowshoe (or varying hare) is known as the snowshoe rabbit. The tail, chin and abdomen are white. Eventually the name was shortened to jackrabbit. Many people consider the Alaskan Hare to be the fourth type. Birthplace of American Coursing* With their new, fleet-footed greyhounds in hand, settlers soon discovered the sport of coursing, in which greyhounds chased a live rabbit in an enclosed field. Hares are also precocial, meaning they are born. 2008), the Desert Southwest (Vorhies and. They have developed several adaptations which keeps them cool in the desert or chaparral biome. The white-tailed jackrabbit is 18-22 inches long and. The black jackrabbit (Lepus insularis) is a species of mammal in the family Leporidae. 7-65 cm) and the tail measures from 2-4. White-tailed jackrabbit range. Its relatively long tail has a black stripe, and its long brown ears have black tips. Species occupying temperate and polar latitudes have multiple physiological and life-history adaptations that help them cope with harsh winters and high seasonality (Blix, 2016). The IUCN has listed this species as a "vulnerable species" because of its restricted range. The snowshoe hare is 13–18 inches long, 2–4 pounds in weight and has an ear length of 3–4 inches. 3. 6 kilograms for four non-pregnant females (Foresman 2012b). The black-tailed gazelle or the goitered gazelle (Gazella subgutturosa) is an animal living in the Gobi Desert and is also found in parts of Azerbaijan, Georgia, Iraq, Iran, Pakistan, Afghanistan, and Turkey. Black-tailed Jack Rabbit. Compare the images of a black-tailed jackrabbit (Lepus californicus) and a snowshoe hare (Lepus americanus) and answer the questions below. ” One authority states they have been clocked at nearly 37 miles per hour, and at top speed are capable of covering as much as almost 10 at a bound. The ears along with the tail are tipped with black fur. Altricial young are born with fur up to 5 mm long with a weight of approximately 61. Life in the fast lane. only at night d. Black-tailed Jackrabbits mate year round. g. It is an important prey. The ears along with the tail are tipped with black fur. During the hot parts of the day the jackrabbit sleeps in a scratch at the base of a shrub or in a tall stand of grass. 0 kilograms; and 2. Length. Jackrabbit Examples - Jackrabbits show no form of social structure, this is in part due to their solitary nature. It has the name "snowshoe" because of the large size of its hind feet. Burrowing owl. But as the climate warms, the hares are increasingly ditching their winter wardrobes and keeping the brown fur they sport during the rest of the year. White-tailed jackrabbit vs Black-tailed jackrabbit White-tailed jackrabbit vs Arctic hare Genetic divergence(d simulated, no selection simulated, selection empirical genome d xy Divergence (RND) D Quartet score > 0. Amy: wildlife in or near water = turtles, crayfish, goldfish. The design of their big ears is one of the jackrabbits' most amazing desert adaptations. The tail has a black stripe above. Black-tailed jackrabbit; The desert cottontail is found. Its fur is buff-colored to blend in with the arid environment. A black-tailed jackrabbit crouched in the sand, eating juniper berries that had dropped from the tree above. Imagine living in the scorching temperatures of Death Valley. S14, B and C; and table S13). The snowshoe hare ( Lepus americanus ), also called the varying hare or snowshoe rabbit, is a species of hare found in North America. 83 lb. Global temperatures continue to rise, it is possible that the adaptations of black-tailed jackrabbits may no longer be sufficient to cope with the increasing heat. They will also eat sagebrush and cacti. Here in the desert near Tucson, rainfall averages only 12 inches (30 centimeters) a year. The ears along with the tail are tipped with black fur. Models suggest that standing variation across these genes and populations may allow for rapid adaptation to reduced snow cover and browner coats in this species. The average weight of two male specimens from Montana was 2. There are three main types of jackrabbits. Refer to Table A. 6 kilograms for four non-pregnant females (Foresman 2012b). After mating, the female, or doe, will have a litter of 1-6 leverets every 3-4 months. The black-tailed jackrabbit is 18 to 25 inches long and is colored buff peppered with black above, and white below. Their buff-colored coats help them blend into the tan landscape. The swamp rabbit ( Sylvilagus aquaticus ), also called the cane-cutter, is a large cottontail rabbit found in the swamps and wetlands of the southern United States. Black-tailed Jackrabbits are herbivores, eating plants such as sagebrush, young trees, and even cacti. Their color and shape vary by species, but generally they are tan, grey, silver, brown, or black. One of the main ways jackrabbits keep cool in their desert climate is simply by staying out of the sun during the hottest parts of the day. 6 kg) and live upwards of. The antelope jackrabbit. 1 to 15. The Black-tailed Jackrabbit: A Desert-dwelling Hare. We collected harvest and survey information on ∼800 antelope jackrabbits (Lepus alleni) and 27 black-tailed jackrabbits (L. The white-sided jackrabbit's body length ranges from 16 to 30 in (41 to 76 cm) long. Jackrabbits are actually hares, not rabbits. Although the animal proved well adapted to arid surroundings, these authors noted that L. Black-tailed jackrabbits are most commonly found on arid range and agricultural lands in the West and often congregate near preferred food sources. 2018). Eva’s Desert Mouse. The gray fox (Urocyon cinereoargenteus), or grey fox, is an omnivorous mammal of the family Canidae, widespread throughout North America and Central America. Snowshoe Hare. Study with Quizlet and memorize flashcards containing terms like Compare asexual versus sexual reproduction. The ears are black-tipped on the outer surfaces and unpigmented inside. The black-tailed jack rabbit is another member of the chaparral biome. Size: LARGEST hare. Black -tailed jackrabbits are relatively common desert animals at Saguaro National Park. The only noises close by were the sounds of my camera clicking away. a desert jackrabbit can run much faster than a coyote; as such, "an ordinary wolf or coyote will not attempt to chase him, for they realize the hopelessness of it. The black-tailed jackrabbit has large ears and long legs that help release heat. For example, black-tailed jackrabbits and cape hares are desert species and dig burrows to escape high temperatues, whereas artic hares dig burrows in the snow to escape the bitter cold. in the. Its most distinguishable features are its black-tipped ears, which measure between five to seven inches in length, as well as its black-top tail. 3C; fig. Habitat: open, grassy, or sagebrush-dominated plains; also subalpine conifer or alpine dwarf-shrub. What are baby jackrabbits called? leverets The black-tailed jackrabbit is not really a rabbit, it is a hare. Kabul D. Their diet changes seasonally. Pikas, Rabbits and Hares. The ears along with the tail are tipped with black fur. From. The adaptation of bird bills for thermoregulation could explain why many bird bills follow Allen’s rule 9. aquaticus. The eastern cottontail is 14 to 17 inches in length and weighs between 2 and 4 pounds. White-tailed Jackrabbit (Lepus. Animalia: information (1) Animalia: pictures (22861) Animalia: specimens (7109) Animalia: sounds (722). A black-tailed. These species live in some of the most seemingly inhospitable environments on earth. The black-tailed jackrabbit has evolved with some of the. The Black-tailed jackrabbit, Lepus californicus, is the most common hare in Western North America, ranging from Mexico to Canada, common in California, and living from sea level to high elevations (over 10,000 ft). These animals are also known for being able to run and leap quickly. The white-tailed jackrabbit is abundant throughout most of the Western United States including some Midwest states as well. Water conservation: These animals survive under scarcity of water in desert or chaparral biome by water retaining adaptation. Lepus californicus Body Length: 17 - 21" Diet: Green vegetation, including tree leaves Jackrabbits are large hares with long legs. Size: LARGE. com is the easiest and fastest way to get answers to your questions, by providing a mashup of several technologies including an AI-enabled Q&A knowledgebase and integrated chat with live experts. . They have powerful hind legs that can propel them on leaps of more than 10 feet (3 meters) . Many species create forms, depressions. CLIMATE ADAPTATION The evolution of white-tailed jackrabbit camouflage in response to past and future seasonal climates Mafalda S. Lemming (Brown). They will also eat sagebrush and cacti. The black-tailed and white-tailed hares are commonly called jack rabbits. Chaparral Animal Adaptations. Baghdad B. Jackrabbits live in open areas with little cover and rely on excellent hearing, exceptional speed. black-tailed jackrabbit. Adaptations. As you might expect, a rabbit’s long ears do a lot to improve their hearing. all of the above, During extreme dry periods tortoises will eliminate waste _______. Family: Ochotonidae. The white-tailed jackrabbit is 18-22 inches long and. The head and back are usually a mix of dark brown, rusty brown, or black. Others, like various bat species, grow long tongues to help them suck the nectar from plants. Many different. carrying riders d. A veterinary laboratory confirmed the presence of Rabbit Hemorrhagic Disease virus type 2 in a wild black-tailed jackrabbit that was among 10 jackrabbits found dead on a property near Palm Springs. 2 cm). S. Jackrabbits can adapt to several different habitats, as long as there are many types of plants in the area. Between both rivers, the black-tailed jackrabbit, Lepus californicus , shows significant differences in external morphological traits. Physical adaptations: Ears: These animals exhibit long ears. The eastern cottontail is 14 to 17 inches in length and weighs between 2 and 4 pounds. Their total length is between 18 and 26 inches. 2008), Idaho (French et al. Sign (1) black-tailed jackrabbit. The black-tailed jackrabbit is not really a rabbit; it is a hare because its young are born with fur. " The long ears of a jackrabbit can transfer excess heat to the air through dilation of the blood vessels to the ear. Larger females. Black-tailed jackrabbits are well adapted to running at high speeds to escape predators and are known for their distinctive “stotting” behavior. 1. Black-tailed jackrabbits are distinguished by black tails and ear-tips. Black-tailed jackrabbits are not actually rabbits, but are hares. With habitat degradation, black-tailed jackrabbits have expanded, while the range of white-tailed jackrabbits has contracted. as a white paste c. These speedy animals are capable of reaching 40 miles (64 kilometers) an hour. These animals have excellent hearing and can swivel them around to better pinpoint sounds. The antelope jackrabbit has a white belly, light grey sides, a back peppered with black, and orange coloration on the neck and chest. Its tail grows to lengths of 1 to 4 in (2. A black-tailed jackrabbit is a hare found in the south and western parts of the United States as well as in Mexico. Big free-tailed bat; Black-tailed jackrabbit; Blanford's fox. This is why the Black-Tailed Jack Rabbit is even able to eat its own droppings. In some cases, the litter size can also reach five kittens. This jackrabbit has an adult length of 56 to 65 cm (22 to 26 in), including a tail measuring 6. During the day, they hide in shallow depressions. The lifespan of this hare is five to eight years. eagles and bald eagles (Haliaeetus leucocephalus) primarily relied on black-tailed jackrabbits as prey during winter. The black-tailed jackrabbit is a medium-sized rabbit that weighs between four and eight pounds. It has distinctive long ears tipped with black. 6 kg). As, the temperature rises they. It can be found at elevations ranging from sea level up to 10,000 ft (3,000 m). Bergmann's and Allen's rules apply to many animals, not just humans. Fur: brownish-gray in summer, or whitish-pale gray in winter! Ears: VERY LONG, BLACK-tipped. White-tailed jackrabbits are more numerous in the northern parts of their range, and aggregations of more than 100 have been reported. Six weeks later, 1 or 2 baby jacks. Facebook. 5. Those circannual traits include seasonal migration, hibernation and coat colour moults, and their occurrence and optimal phenology is critical. Black Tailed Jackrabbit stock photos are available in a variety of sizes and formats to fit your needs. The black-tailed jackrabbits (Lepus californicus) most identifying feature is its huge ears. A jackrabbit has fur on the bottoms of its feet. The white-sided jackrabbit's body length ranges from 16 to 30 in (41 to 76 cm) long. White-tailed jacket rabbits are ideal prey for many prairie predators, including some other at-risk species, such as the golden eagle and swift fox. 6 in (45. Final answer. Black-tailed Jackrabbit #6 – Nikon D200, f6. Fossil evidence of this species was found dating back to the early Holocene, which indicated that it was more prevalent than the similar species of black-tailed jackrabbits that have also been known to exist at that time (Wilson 1999). Organisms that live in the chaparral have developed unique adaptations that aid in their survival. As blood circulates through the ears, heat is released through the thin skin. Using its keen senses of hearing and sight and its speed. 2 cm). Black-tailed jackrabbits are distinguished by black tails and ear-tips. He was unable to distinguish between pellets from the two eagle species, which were active in the same areas, but found that 98% of pellets contained black-tailed jackrabbits. When temperatures start to rise, jackrabbits can regulate the flow of blood through their ears by dilating their blood vessels. Log in for more information. Members of the order Lagomorpha (hares, rabbits and pikas) vary in cursorial ability; hares are generally highly cursorial, rabbits more frequently saltate, and pikas predominantly trot. californicus) from 2009 to 2020. Except for the rust colored nape, the upper parts of the body and chest are pinkish or reddish to grayish brown sprinkled with black. The kit fox preys on small mammals like the black-tailed hares, kangaroo rats, squirrels and also prey on small birds as well as lizards. The jackrabbit is a fascinating creature that has developed a range of amazing adaptations to survive in its unique desert habitat. I’ve never seen this in Idaho, and have rarely seen more than one or two in a hike. This is due to their. Brush rabbit. Like the snowshoe hare, however, the black-tailed jackrabbit’s coat is an excellent example of background matching: its blackish-brown and speckled-white coat beautifully matches. They appear to have spread north from Oregon on their own, and were first. Oversized hind legs launch them across desert sage and grassy prairie, and their giant ears release heat to cool their bodies. With yellowish to grey/brown fur. Its body length ranges from 52 to 58 cm (22 in) long and its tail can be 5 to 10 cm (3 in) long. 0These adaptations are as varied as the deserts themselves, encompassing ingenious methods of water conservation in the arid Atacama, nocturnal lifestyles in the Sahara to avoid the relentless heat, and unique dietary strategies in the food-scarce landscapes of the Australian deserts. 5 to 10. Here are some possible changes that could occur:Reduced range: As temperatures rise, the habitat suitable for the black-tailed jackrabbit may shift. Study with Quizlet and memorize flashcards containing terms like Camel humps are an adaptation for _______. Based on what you can see in the images, which of these hares is adapted for a cald climate?The black-tailed jackrabbits (Lepus californicus) most identifying feature is its huge ears. It has long slender front legs and large hind feet that can be 5 inches in length. It has long slender front legs and large hind feet that can be 5 inches in length. The white-tailed jackrabbit hare, left, is distinguished from the cottontail rabbit, right, by its longer, black-tipped ears and larger, stronger hind legs. Adaptations. 9 to 14. Bat-eared Fox. They are most active in the late afternoon, preferring to spend the day resting in a form, a shallow depression the size of. the jackrabbit can shed all excess body heat through its ears. A popular prey for a variety of mammals and birds, the jack rabbit confuses. When the jackrabbit gets too hot, these blood vessels widen, which promotes heat loss. Tail: WHITE on top and below. S. The black-tailed jackrabbit can occupy a wide range of habitats as long as diversity in plant species exists. 2 cm). Maricopa harvester ant. They have a black stripe at the downward area of the back. She. The black-tailed jackrabbit, also known as the American desert hare, can reach speeds of up to 40 miles an hour and is capable of jumping more than 15 feet. White-tailed jackrabbits have long antenna-like ears that are colored gray on the anterior half of the outside, white on the opposing half, and a dark black patch extending to the tip. 5 to 10. and Mexico. Jackrabbit Size and Coloring. Ears of this jackrabbit are rimmed in white and tipped in black year round. Habitat: open, grassy, or sagebrush-dominated plains; also subalpine conifer or alpine dwarf-shrub. Table A. 20-23 inches in total length. HDR. “Jackrabbits are known for their dramatic population fluctuations,” reports the USFWS, and their highs “may be twice or even hundreds of times greater than during population lows. Lepus americanus. The mothers give birth to litters of around three to four kittens. , A phenotype is a physical characteristic, while a genotype is the actual combination of alleles (Aa, AA, or aa). The dominant Lepus in North America's intermountain region prior to the Holocene, the grassland-adapted white-tailed jackrabbit Lepus townsendii (), began giving way to the black-tailed jackrabbit Lepus californicus with the onset of warming temperatures and changing vegetation between 2,000 and 8,000 y ago (Grayson 1977; Schimitt et al. They have large eyes that are high on their head and placed toward the side. Like other jackrabbits, the Black-tailed jackrabbit has distinctive long ears, and the long powerful rear legs characteristic of hares. 3. jackrabbit adaptations for survival. Behavioral adaptations: These animals keep themselves protected against the hot climatic conditions. Jackrabbits are relatively large, but their size varies from species to species. They reach sexual maturity in 1 year. Abstract. Lepus californicus. The genus includes the largest lagomorphs. Bergmann's and Allen's rules apply to many animals, not just humans. Reaching a length around 2 ft (61 cm), and a weight from 3 to 6 lb (1. They prefer open desert areas, but they cannot tolerate extreme dry conditions endured by the antelope jackrabbit. Black-tailed jackrabbit in snow. Black-tailed Jackrabbit Details & Location: The Black-tailed. Scientific name: Otocyon. Juglans nigra, or Black walnut, is native to the eastern one-half of Kansas. This jackrabbit has an adult length of 56 to 65 cm (22 to 26 in), including a tail measuring 6. After their food have been. regulating body heat c. Black-tailed jackrabbits weigh between 3 to 9 pounds while white-tailed jackrabbits range from 6 to 10 pounds; Size plays a crucial role in the jackrabbit’s adaptation to various habitats and evasion from predators; Basic Features and Identification. Like antelopes, these hares also show flashes, as they run, of their white underside. Contrast the advantages and disadvantages of each. The underparts are white to grayish white. Jackrabbits have a set of adaptations that suit them to arid and semiarid environments: a spartan diet with little water, camouflage, eyes on the sides of their.