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The moose (North America) or elk (Eurasia), Alces, is the largest extant species in the deer family. Moose are distinguished by the palmate antlers of the males; other members of the family have antlers with a dendritic (“twig-like”) configuration. Moose typically inhabit boreal and mixed deciduous forests of the Northern Hemisphere in temperate to subarctic… Read More
The American bison (Bison bison), also commonly known as the American buffalo, is a North American species of bison that once roamed the grasslands of North America in massive herds. They became nearly extinct by a combination of commercial hunting and slaughter in the 19th century and introduction of bovine diseases from domestic cattle, and… Read More
Eagles are large, powerfully built birds of prey, with a heavy head and beak. Even the smallest eagles, like the booted eagle (which is comparable in size to a common buzzard or red-tailed hawk), have relatively longer and more evenly broad wings, and more direct, faster flight – despite the reduced size of aerodynamic feathers.… Read More
Dolphins are cetacean mammals closely related to whales and porpoises. There are almost forty species of dolphin in 17 genera. They vary in size from 1.2 m and 40 kg, up to 9.5 m and 10 tonnes. Dolphins are very cool!
Elephants are the largest living terrestrial animals. African elephants stand 3–4 m (10–13 ft) and weigh 4,000–7,000 kg (8,800–15,400 lb) while Asian elephants stand 2–3.5 m (7–11 ft) and weigh 3,000–5,000 kg (6,600–11,000 lb). In both cases, males are larger than females. Among African elephants, the forest form is smaller than the savannah form. The… Read More
The male common chimp stands up to 1.7 m (5.6 ft) high and weighs as much as 70 kg (150 lb); the female is somewhat smaller. The common chimp’s long arms, when extended, span one and a half times the body’s height. A chimpanzee’s arms are longer than its legs. The bonobo is slightly shorter… Read More
Zebras are several species of African equids (horse family) united by their distinctive black and white stripes. Their stripes come in different patterns, unique to each individual. They are generally social animals that live in small harems to large herds. Unlike their closest relatives, horses and asses, zebras have never been truly domesticated. Here is… Read More
Geckos’ toes seem to be “double jointed”, but this is a misnomer. Their toes actually bend in the opposite direction from human fingers and toes. This allows them to overcome the van der Waals force by peeling their toes off surfaces from the tips inward. In essence, this peeling action alters the angle of incidence… Read More
Rabbits are small mammals found in several parts of the world. There are eight different genera in the family classified as rabbits, including the European rabbit and cottontail rabbits. Rabbit habitats include meadows, woods, forests, grasslands, deserts and wetlands.