Researchers have traced cell origins critical to vertebrate evolution by studying a group of primitive, bloodsucking fish called lampreys. When you purchase through links on our site, we may earn an ...

A living fossil fish just proved we've misunderstood a major chapter in the story of evolution. For decades, the coelacanth — an ancient fish species that first appeared 400 million years ago — was ...

Deep-sea fish, a group of inhabitants of the most light-deprived and harsh environments on our planet, have been discovered to possess a vision similar to humans. This groundbreaking finding not only ...