Jawless, bloodsucking fish could help us understand how humans and all other vertebrates evolved, scientists say. Turns out, lampreys — notable for their lack of jaw and generally terrifying ...

WASHINGTON (Reuters) - Primitive fish already may have possessed the genetic wiring needed to grow hands and feet well before the appearance of the first animals with limbs roughly 365 million years ...

A primitive fish straight out of a Jurassic Park movie was caught in west Florida’s Choctawhatchee River and even state biologists had to pause to figure out what they had. The discovery was made 100 ...