Humans have lots of basic requirements that need to be met in order to stay alive. Food is a necessary one, though it’s possible to go without for great stretches of time. Water is more impor…
Yeah exactly. Hank Green hints at this in the video title but skin is the biggest problem that had to be solved to move us onto land. How does one keep from drying out? It’s like we made a spacesuit for ourselves and now live in it.
Yeah exactly. Hank Green hints at this in the video title but skin is the biggest problem that had to be solved to move us onto land. How does one keep from drying out? It’s like we made a spacesuit for ourselves and now live in it.