Humans are the only primates who are normally biped, due to an extra curve in the spine which stabilizes the upright position, as well as shorter arms relative to the legs than is the case for the nonhuman great apes.

Are humans bipedal hominid?

Today, we look at the most fundamental human characteristic: walking upright. Walking upright on two legs is the trait that defines the hominid lineage: Bipedalism separated the first hominids from the rest of the four-legged apes.

What is an example of biped?

A biped is an animal that walks on two legs, with two feet. Human beings are one example of bipeds. Most animals are not bipeds, but mammals that are include kangaroos and some primates. The ostrich, a giant, flightless bird, is the fastest living biped, and animals like bears and lizards are occasional bipeds.