These 20 animals are so strange they look like science fiction creations, but they’re completely real. Nature is far more bizarre than you think.

Scientists are trying to understand how complex life emerged on Earth about 2 billion years ago. Our microbial ancestors could be the key.

The newly discovered fish fossil fills a key gap in our understanding of the evolution of vertebrate diversity.

A rare Japanese ant is the only species known to lack female workers and males; all of its young develop into parasitic queens that try to take over other colonies.

Earth’s vertebrate diversity may be far richer than anyone realized. A sweeping analysis of more than 300 studies suggests that for every known fish, bird, reptile, amphibian, or mammal species, there ...

A sediment-washing “bubbler” helped researchers recover 65.5-million-year-old teeth that illuminate how early primate relatives spread after the mass extinction.

You’ve probably seen a headline or two about an invasive species taking over. Perhaps you’ve seen a sign warning of ...

Invasive species are a threat to biodiversity, causing damage to local ecosystems and, potentially, economic loss. Once a non ...

It’s hard for us to assert.” Bill Diamond, president and chief executive of SETI, told “Jesse Weber Live” on Friday.

A viral Obama podcast answer about aliens prompted Trump to accuse him of revealing secrets and promise to release UFO files ...

Trump's comments came hours after he claimed that former President Barack Obama shared "classified information"' when he told ...

"He gave classified information, he's not supposed to be doing that," Trump told reporters Feb. 19 in discussing Obama's ...