The basic mammalian body type is quadruped, and most mammals use their four extremities for terrestrial locomotion; but in some, the extremities are adapted for life at sea, in the air, in trees, underground, or on two legs. Mammals range in size from the 30–40mm (1.2–1.6in) bumblebee bat to the 30m (98ft) blue whale—possibly the largest animal to have ever lived. Maximum lifespan varies from two years for the shrew to 211 years for the bowhead whale. All modern mammals give birth to live young, except the five species of monotremes, which are egg-laying mammals. The most species-rich group of mammals, the infraclass called placentals, have a placenta, which enables the feeding of the fetus during gestation.
Domestication of many types of mammals by humans played a major role in the Neolithic Revolution, and resulted in farming replacing hunting and gathering as the primary source of food for humans. This led to a major restructuring of human societies from nomadic to sedentary, with more co-operation among larger and larger groups, and ultimately the development of the first civilizations. Domesticated mammals provided, and continue to provide, power for transport and agriculture, as well as food (meat and dairy products), fur, and leather. Mammals are also hunted and raced for sport, kept as pets and working animals of various types, and are used as model organisms in science. Mammals have been depicted in art since Paleolithic times, and appear in literature, film, mythology, and religion. Decline in numbers and extinction of many mammals is primarily driven by human poaching and habitat destruction, primarily deforestation. (Full article...)
The bobcat (Lynx rufus), occasionally known as the bay lynx, is a North American mammal of the cat family, Felidae. With twelve recognized subspecies, it ranges from southern Canada to northern Mexico, including most of the contiguous United States. The bobcat is an adaptable predator that inhabits wooded areas, as well as semi-desert, urban edge, and swampland environments. It persists in much of its original range and populations are healthy. With a gray to brown coat, whiskered face, and black-tufted ears, the bobcat resembles the other species of the mid-sized Lynx genus. It is smaller than the Canadian lynx, with which it shares parts of its range, but is about twice as large as the domestic cat. It has distinctive black bars on its forelegs and a black-tipped, stubby tail, from which it derives its name. Though the bobcat prefers rabbits and hares, it will hunt anything from insects and small rodents to deer and pronghorn antelope. Prey selection depends on location and habitat, season, and abundance. Like most cats, the bobcat is territorial and largely solitary, although there is some overlap in home ranges. It uses several methods to mark its territorial boundaries, including claw marks and deposits of urine or feces. The bobcat breeds from winter into spring and has a gestation period of about two months. Although the bobcat has been subject to extensive hunting by humans, both for sport and fur, its population has proven resilient. The elusive predator features in Native American mythology and the folklore of European settlers.
...that one burrow of the eastern chipmunk(pictured) was found to contain 390 acorns?
.. that the Hare Indian dog, now extinct, was not known to bark, but puppies learned to imitate the barking of other dogs when the breed was introduced to Europe?
The skull of the African buffalo (Syncerus caffer), a large African bovine. It has a long but stocky body and short but thickset legs, resulting in a relatively short standing height. The adult bull’s horns, as shown here, have fused bases, forming a continuous bone shield known as a "boss".
A portrait of a snow leopard (Panthera uncia) at the Rheintal Zoo in Germany. This species of big cat in the genusPanthera is native to the mountain ranges of Central and South Asia. The snow leopard's adaptations for life in a cold, mountainous environment include a stocky body, thick fur, small rounded ears to minimize heat loss, and a short muzzle with unusually large nasal cavities that help the animal breathe the cold, thin air.
A female proboscis monkey (Nasalis larvatus) at Labuk Bay, Sabah, Malaysia. This monkey is endemic to Borneo. Though the female has a large nose, it is smaller than that of the male.
The European hedgehog (Erinaceus europaeus) is a species of hedgehog found in a wide range of habitat types in western Europe. It is a well-known species, and a favourite in European gardens, both for its endearing appearance and its preference for eating a range of garden pests. While populations are currently stable across much of its range, it is thought to be declining severely in Great Britain.
A female impala (Aepyceros melampus) photographed at Mikumi National Park, Tanzania. These medium-sized Africanantelopes inhabit savanna grasslands and woodlands close to water sources, feeding on grasses, forbs, monocots, dicots and foliage. They are fast runners and known for their leaping ability, reaching heights up to 3m (10ft).
A 3-week-old donkey (Equus africanus asinus), in Kadzidłowo, Poland. A female donkey is normally pregnant for about 12 months, and usually gives birth to a single foal; twins are rare.
The llama (Lama glama) is a domesticated South American camelid, widely used as a meat and pack animal by Andean cultures since the pre-Columbian era. A full-grown llama can reach a height of 1.7 to 1.8 metres (5ft 7in to 5ft 11in) at the top of the head, and can weigh between 130 and 200 kilograms (290 and 440lb). At birth, a baby llama (known as a cria) can weigh between 9 and 14 kilograms (20 and 31lb). Llamas typically live for 15 to 25years, with some individuals surviving 30 years or more. This photograph shows a dam (female llama) and her cria at Laguna Colorada in Eduardo Avaroa Andean Fauna National Reserve, Bolivia.
The springbok is a medium-sized brown and white gazelle native to southwestern Africa. It stands about 70 to 90cm (28 to 35in) high and is known for its jumping ability, being able to leap 4m (13ft) in the air and over a distance of 15m (49ft). It is also a fast runner, capable of reaching speeds up to 96km/h (60mph). The springbok is the national animal of South Africa.
The steenbok (Raphicerus campestris) is a species of small antelope, generally standing 45–60 centimeters (16–24 inches) at the shoulder, commonly found in Africa. They live in a variety of habitats, from semi-desert to open woodland and thickets, and feed on low-level vegetation and roots. These common animals are typically solitary, except during mating season.
Female topi (Damaliscus lunatus jimela) in the Queen Elizabeth National Park in Uganda. A subspecies of the common tsessebe antelope, the topi is native to several countries in eastern Africa and lives primarily in grassland habitats, ranging from treeless plains to savannas. It is a tall species, with individuals ranging in height from 100 to 130cm (39 to 51in) at the shoulder. Predators of topi include lions and spotted hyenas, with jackals being predators of newborns.
An adult and a juvenile olive baboon (Papio anubis) at Queen Elizabeth National Park, Uganda. The most wide-ranging of all baboons, the olive baboon inhabits savannas, steppes, and forests in 25 countries throughout Africa. This highly adaptable species is omnivorous, feeding on a large variety of plants, invertebrates, small mammals, and birds.
Close-up of a juvenile Southern Elephant Seal (Mirounga leonina), showing face and mouth detail. This species of elephant seal is not only the most massive pinniped, but also the largest member of the order Carnivora living today. It is found throughout the subantarctic region.
A giraffe extending its tongue to feed. Its tongue, lips and palate are tough enough to deal with sharp thorns in trees. Giraffes prefer trees of the genera Acacia, Commiphora and Terminalia. A giraffe requires less food than typical grazing animals, typically consuming 65 pounds (29kg) of leaves and twigs daily, because the foliage it eats has more concentrated nutrition and it has a more efficient digestive system.
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