bipedal
On two legs
Bipedal means walking on two legs.
Humans are bipedal; so are birds and certain dinosaurs.
The term appears in biological and evolutionary contexts: Bipedal locomotion freed the hands for tool use.
A biped is a two-legged creature.
Position, physical or social
- erectVertical in position
- verticalAt right angles groundward
- postureBody position, alignment
- two-leggedHaving a pair of limbs
upstanding · perpendicular · hands-free · tool use · carrying capacity
Homo sapiens individual
- ostrichLargest living bird
- kangarooPouched Australian leaper
- penguinFlightless aquatic southern bird
- meerkatSocial African mongoose relative
tyrannosaurus · velociraptor · gibbon · robot · android · walker · theropod · roadrunner
Locomotion appendages below torso
Bipedal primate family
- AustralopithecusExtinct hominin genus
- Homo erectusExtinct bipedal human ancestor
- LucyFeminine name meaning light
- fossilPreserved ancient organism
natural selection · adaptation · Ardipithecus · phylogeny · speciation · Paleolithic · Pleistocene · primates
standing
Position, physical or social
two-legged · upstanding · perpendicular · hands-free · tool use · carrying capacity
human
Homo sapiens individual
meerkat · tyrannosaurus · velociraptor · gibbon · robot · android · walker · theropod · roadrunner · jerboa
legs
Locomotion appendages below torso
posture · gait · hip · knee · ankle · femur · tibia · fibula · heel · toes
hominid
Bipedal primate family
- AustralopithecusExtinct hominin genus
- Homo erectusExtinct bipedal human ancestor
- LucyFeminine name meaning light
fossil · natural selection · adaptation · Ardipithecus · phylogeny · speciation · Paleolithic · Pleistocene · primates · Darwin
walking
Locomotion on foot
stepping · pacing · ambulating · strolling · sauntering · treading · hiking · trekking · running · sprinting
- roboticsrobot, android, humanoid, robotic arm, servo
- zoologymammals, reptiles, amphibians, birds, insects
- bi- wordsbiannual, biathlon, bicameral, bicentennial, bicycle
- leg countstwo legs, four legs, hexapod, octopod, eight legs
- primate traitsopposable thumbs, grasping hands, prehensile, binocular vision, arboreal
- ostrich traitsemu, cassowary, rhea, kiwi, moa
bipedalquadrupedal
Walking on four legs
four-legged · hexapod · octopod · all fours · six-legged
bipedalquadrupedal
Walking on four legs
knuckle-walking · four-footed · prone · horizontal · ground-dwelling
- bipedal robotTwo-legged artificial walker