Tim Urban
@waitbutwhy
Writer, infant
가입 March 2013
912 팔로잉 중 902.6K 팬
One prominent theory says that long before our fish ancestors left the water, they did a lot of this, briefly scooting from pond to pond. Slowly, some evolved to be so good at scooting around on land and breathing air that they became fully amphibious.
더 보기
