Mosasaurs, giant marine reptiles that existed more than 66 million years ago, lived not only in the sea but also in rivers.

The rare creature, called Haliphron atlanticus, was seen by the Monterey Bay Aquarium Research Institute’s biodiversity and biooptics team on Nov. 6, the institute confirmed to SFGATE via email. Prior ...

Officials in Brevard County, Florida, recently captured a large American crocodile after residents witnessed it swimming ...

We haven’t seen a beatdown of front yard reindeer this bad since Chevy Chase's Clark Griswold had a mental and emotional breakdown after his decorative lights didn’t work in National Lampoon's ...

Researchers have reclassified a long-misidentified fossil from New Mexico as Ahshiselsaurus wimani, a newly recognized giant duck-billed dinosaur that offers fresh insights into hadrosaur evolution ...

Size shapes the way animals move, hunt, and survive. For example, in the ocean, ginormous creatures rely on their massive ...

This is far from the first time that cameras have shown their value in aiding the research of biologists. Spotting a species ...

Lamniform sharks such as great whites and tiger sharks are famous for their size. The first such giants evolved 15 million ...

Super Animal Royale isn't exactly a brand-new Battle Royale but it is probably the cutest one to date. Although it came out ...

Explore the remarkable similarities and differences between sperm whales and giant squid, from size and behavior to diet and ...

Discover the extraordinary prehistoric giants – from mega-sloths to monster sharks – that once made today’s animals look ...

The Philadelphia Eagles have enlisted the "positivity rabbit" as they look for solutions for a season gone wrong.