Since the Triassic period was the time of the first dinosaurs, herbivores and carnivores were known to walk on 2 legs. Examples are:
Corythosaurus
Caseosaurus
Technosaurus
Shuvosaurus
Any animal that walks on two legs is called bipedal. However, most dinosaurs that only walked on two legs belonged to the group known as theropods, whose species were usually meat eaters. Some small plant eating dinosaurs were also bipedal, but because they were not all directly related, they do not all fall under the same group name. A few dinosaurs (particularly hadrosaurs and iguanodonts) usually walked on four legs, but stood on two legs in order to scan for danger or to run.
tyranosaurus rex
Monkeys have two legs and two arms.
Creatures that walks on two legs are called bipeds.
yes, T-rex could only walk on two feet because it's front arms/legs were very tiny.
A human? Yes because a baby crawls on four legs an adult walks on two legs and a OAP hobbles around with a walking stick,so has three legs.
A human.
Something that walks on two legs is called a biped and something that walks on four legs is a quadruped.
The Oldest Dinosaur fossil ever found was a omniraptor, and it walked on two legs.
Mickey Mouse
The hadrosaurus was a dinosaur that walked on two legs and swam in the water. It had webbed feet and a duckbill. There were several species.
How "many" legs can a dinosaur have - two to four legs
a human, (four legs)walks as a baby on hands and knees(two legs)a person who walks on two legs (three legs) a guy with a cane.I know right this is one big lie and doesn't help you soz it is hard to find a three legged animal.