In a forested region of Angola where a cliff separates the landscape, a new species of butterfly was discovered. /iStockphoto ...

A widely anticipated study will begin as soon as next month in an effort to determine if there is increased muskie mortality ...

Genetic analysis reveals that dire wolves are not gray wolves’ ancestors but a separate species, reshaping evolutionary ...

The new leech species has three jaws, five pairs of eyes aligned in a U-shape, a disc-shaped “caudal sucker” for attachment, ...

In fact, their use is approved by the Food and Drug Administration. Yes, they’re still sometimes used in 21st century ...