In the war against invasive species, it’s not clear that Arizona is winning. "We're losing, just like everyone else,” said ...

"She’s just feeding her pet," commented one user on the social-media video that has more than 371,000 views.

Throughout the history of life on Earth, some species have evolved to incredible sizes. Animals today can reach enormous sizes, such as the biggest polar bear found in the U.S., which outsized the ...

These reptiles have roamed the oceans for 100 million years. We've put them at risk, but with a little help, they're rebounding. Green sea turtles congregate near a dock in the Bahamas. They were so ...

Had life not made an interception, Kevin James might be scoring touchdowns instead of comedy and acting gigs. A star tailback in high school, James continued his football career at State University of ...