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History
Bipedalism
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Bipedalism is a form of terrestrial locomotion where a tetrapod moves by means of its two rear limbs or legs. An animal or machine that usually moves in a bipedal manner is known as a biped, meaning 'two feet'. Types of bipedal movement include walking or running and hopping.
An ostrich, the co-fastest extant biped along with the red kangaroo, at 70 km/h (43 mph)
An ostrich, the co-fastest extant biped along with the red kangaroo, at 70 km/h (43 mph)
A Man Running; by Eadweard Muybridge
A Man Running; by Eadweard Muybridge
A group of children racing
A group of children racing
ASIMO - a bipedal robot
ASIMO - a bipedal robot
Terrestrial locomotion
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Terrestrial locomotion has evolved as animals adapted from aquatic to terrestrial environments. Locomotion on land raises different problems than that in water, with reduced friction being replaced by the increased effects of gravity.
The velvet worm (Onychophora)
The velvet worm (Onychophora)
A jumping kangaroo.
A jumping kangaroo.
Helix pomatia crawling over razor blades. Terrestrial gastropods crawl on a layer of mucus. This adhesive locomotion allows them to crawl over sharp o
Helix pomatia crawling over razor blades. Terrestrial gastropods crawl on a layer of mucus. This adhesive locomotion allows them to crawl over sharp objects.
The pangolin Manis temminckii in defensive position.
The pangolin Manis temminckii in defensive position.