Enter your address to receive notifications about new posts to your email.
Articles tagged Evolution
(101 results)
-
The Fragile Y
Y chromosomes have come and gone many times during evolutionary history. Take beetles. When Heath Blackmon and Jeff Demuth modeled sex chromosome evolution in more than a thousand beetle species, they found the Y chromosome had independently evolved around 65 times in the suborder Adephaga alone. And as fast as this group evolved new Y chromosomes,…
-
Neanderthal Relations: Interbreeding or Ancestral Structure?
In Eurasia, humans once had Neanderthals for neighbors. That time of co-existence seems to have left its marks in our genome; non-Africans today share more genetic variants with Neanderthals than Africans do. But does this really mean there was interbreeding between humans and the Hominids next door? Some have previously proposed an alternative explanation for that…