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An ostrich, the co-fastest extant biped [1] along with the red kangaroo, at 70 km/h (43 mph) [2] [note 1]. Bipedalism is a form of terrestrial locomotion where an animal moves by means of its two rear (or lower) limbs or legs.
The feet in loons [2] and grebes [2] [7] are placed far at the rear of the body - a powerful accommodation to swimming underwater, [7] but a handicap for walking. The snowshoe -like foot of the willow ptarmigan is an adaptation for walking on snow.
The ostrich is the fastest bird on land, as well as the fastest running animal on two legs. [51] [52] The highest reliably measured running speed for ostriches is 61 km/h (38 mph), obtained by speedometer reading when a car was chasing an ostrich in a straight line chase to force it to move as fast as it could. [53]
Two living species are recognised, the common ostrich, native to large areas of sub-Saharan Africa, and the Somali ostrich, native to the Horn of Africa. They are the heaviest and largest living birds, with adult common ostriches weighing anywhere between 63.5 and 145 kilograms and laying the largest eggs of any living land animal. [ 3 ]
Wass was located along with two orphaned ostrich chicks that reportedly comforted the young elephant as he was loaded onto a plane. Wass and the ostriches were airlifted to David Sheldrick ...
A digitigrade animal is one that stands or walks with its toes (phalanges) on the ground, and the rest of its foot lifted. Digitigrades include birds (what many see as bird's knees are actually ankles), cats, dogs, and many other mammals, but not plantigrades (such as humans) or unguligrades (such as horses). Digitigrades generally move more ...
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The common ostrich is the largest and heaviest living bird. Males stand 2.1 to 2.75 m (6 ft 11 in to 9 ft 0 in) tall and weigh 100 to 130 kg (220 to 290 lb), whereas females are about 1.75 to 1.9 m (5 ft 9 in to 6 ft 3 in) tall and weigh 90 to 120 kg (200 to 260 lb). [20]