The loss of the brow ridge in H. Sapiens was likely a consequence of brain + facial restructuring; but its loss allowed us the ability to move our eyebrows in subtle ways to communicate various emotional states with others.https://www.sapiens.org/evolution/human-eyebrow-evolution/ …
0 replies
8 retweets
28 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.