HumansHumans are the only primates with a chin – now we finally know why Biologists have debated the reason why Homo sapiens evolved a prominent lower jaw, but this unique feature may actually be a by-product of other traits shaped by natural selection News
HumansKissing may have evolved in an ape ancestor 21 million years ago Rather than being a recent cultural development, kissing may have been practised by other early humans like Neanderthals and our ape ancestors News