SCIENCE! Why Do We Have Butt Hair? [SciShow]
Apparently, not every bit of our physiology needs an evolutionary purpose. But we’d sure like an explanation.
You’ve asked. Now we’re answering.
(by @scishow)
GABEtumblr is now GABEmode
GABEtumblr is now GABEmode
Apparently, not every bit of our physiology needs an evolutionary purpose. But we’d sure like an explanation.
You’ve asked. Now we’re answering.
(by @scishow)