Worms radically reorganized their genomes during their move from sea to land, supporting the theory of punctuated equilibrium in evolution.

“It may be doubted,” Darwin wrote, “if there are any other animals which have played such an important part in the history of the world as these lowly organized creatures.” ...

In an attempt to explain this, punctuated equilibrium posits that rapid evolution can occur periodically after millions of years of relative genetic stability.

The ancient history of Africa included great empires and many civilizations, but it was probably not the cradle of humanity, which came from modern humans leaving Eurasia and mixing with Denisovans in ...

Suddenly feeling old? Evidence now suggests that rather than a long, steady decline, we dramatically age around three ...

Local, state and federal officials are all pointing fingers in the wake of the deadly Texas flooding, but one thing is ...

Alia Syed's exhibition The Ring in the Fish explores the role imagination plays in migration. Its curator reflects on ...

AUSTIN, Texas — Local, state and federal officials are all pointing fingers in the wake of the deadly Texas flooding, but one thing is certain: The warnings weren’t heard by the people who ne… ...