Why Aren't Humans "Knuckle-Walkers"?
Our closest biological relatives, the African apes, are the only animals that walk on their knuckles; CWRU researchers discovered why
humans
Scientists Observe as Humans Learn to Sense Like a Rat with "Whiskers"
Rats use a sense that humans don’t: “whisking.” They move their facial whiskers back and forth about eight times a second to locate objects in their environment. Could humans acquire this sense?