Twins are pretty rare, accounting for just 3% of births in the U.S. these days. But new research shows that for primates 60 ...

The researchers extended their analysis to eight exemplary fossil species from four continents spanning 300 million years of evolution. The species ranged from the 35g proto-mammal Megazostrodon ...

Some ancient traits were lost and had a major influence on mammal evolution. One of the significant losses among mammal ...

Pioneering research reveals the origins of the ventral nerve cord in early molting animals. An international team of ...

"This is unusual and tells us a lot about how mammals' evolution took place.” Small mammals living today have much shorter lifespans, some surviving for as little as 12 months, and maturing ...

However, 60 million years ago, having twins was the norm among primates, which changed everything anthropologists understood ...

Evolution is often depicted as a steady forward march from simple to complex forms. But new research shows that certain ferns ...

The outer ear is unique to mammals, but its evolutionary origin has remained a mystery. According to a study published in ...

The origin of mammals is shrouded in mystery, but every fossil clue helps rewrite the story. A new discovery on a Mediterranean island is challenging what we know about when—and where—mammal ...

An international team of scientists has uncovered a fascinating piece of the evolutionary puzzle: how the ventral nerve cord, ...

Scientists discovered that choanoflagellates coordinate their movements through electrical signaling via voltage-gated ...