But puppies walk on all fours and babies can also crawl on all fours. | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		chrischen on Jan 14, 2018 \| parent \| context \| favorite \| on: Dolphins Show Self-Recognition Earlier Than Childr... But puppies walk on all fours and babies can also crawl on all fours.

dtparr on Jan 15, 2018 [–]

Puppies generally start walking about 3wks in, while babies are usually at least 6 months before crawling. So that closes the timeline somewhat, but there's still a large gap.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact