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

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 ...

An international team of scientists has uncovered a fascinating piece of the evolutionary puzzle: how the ventral nerve cord, a key component of the central nervous system, evolved in ecdysozoan ...

Marsupial moles are perhaps Australia's most bizarre mammals. Known as "itjaritjari" to the Indigenous Aṉangu people and featuring prominently in their tales, the marsupial mole is rarely observed, ...

Researchers have uncovered why the formidable teeth of saber-toothed predators like Smilodon were evolutionarily advantageous ...