The black caiman is one of the Amazon’s apex predators, a stealthy hunter that preys on mammals using ambush tactics and ...

The beautiful river otter searches for fish here in The Villages. Look closely at his expression at the exact instant that he locates dinner! Thanks to Sam Boatman for sharing!

Long before modern otters became symbols of playful behavior, a much larger version existed. Fossil evidence points to an otter species that reached the size of a lion and occupied the role of a ...

Large prehistoric marine reptiles known as mosasaurs dominated the oceans until their extinction 66 million years ago.

The unlikely security camera footage reveals that unlike 20 years ago, these charming riverine mammals are no longer rare.

BOCA RATON, Fla. — Here in South Florida, we are lucky to live alongside so much wildlife. You may never have even seen one outside of a zoo, but river otters actually call South Florida home, too.

A second giant otter, Romo, has died at the Roger Williams Park Zoo just days after the death of his brother, Fernando. Romo, who was nearly 14, was euthanized after an exam revealed his cancer had ...

During a tiger survey in a forest sanctuary in northern India, researchers accidentally photographed a different predator. Their cameras captured the first confirmed images of smooth-coated otters ...

Along the Umpqua River in southwestern Oregon, a wild river otter carries a smallmouth bass in its mouth when, in a split second, a bald eagle swoops in from above and tries to grab the fish away. The ...

According to the South Dakota Game Fish and Parks (GFP), the harvest limit of 30 otters was met Friday around 9:15 a.m. River otters captured in existing traps for the next 24 hours are legal, but ...