orthograde
/ˈɔrθəˌɡreɪd/
adjective
- Walking or standing with the body upright, like humans do.
- Humans are orthograde primates, while chimpanzees often walk on all fours.
- The orthograde posture allows our hands to be free for carrying tools.
- Fossil evidence shows early hominins were already orthograde millions of years ago.
Antonyms