Wild Nature

The best way to measure how old a fish is is by counting the number of rings formed on a chunk of calcium living in its inner ear. This lake trout, named Mary Catherine, had 62 rings.

An alligator in the Florida Everglades was seen doing its part to combat the invasion of Burmese pythons in the region, chomping on the limp body of one of the massive snakes and swimming off with the meaty catch.

Recently, some wild rabbits have been seen in the U.S. with "horn-like" growths spurting from their heads that are caused by a viral infection, according to experts.

A proud Pomeranian fearlessly protected his home – or more likely his food bowl – from a black bear who wandered inside.

A livestream of deep-sea creatures captivated Argentina, highlighting the calming global trend of “slow TV." Here's why millions tuned in.

WATCH: A shark and stingray engaged in quite the tussle last month off the shore of Panama Beach in Florida. A woman was able to capture the moment on camera.

“It is the biggest marine disease outbreak of any species thus far in history."

The marks extended up the child's arm.

A 24-year-old international tourist was killed when he was driving and hit a moose near Denali National Park in Alaska.

Volunteers and scientists are finding bees in Washington that have never been recorded, and some long thought to have been gone from the state.

A wasp nest found in South Carolina had radiation levels 10 times higher than what’s allowed by federal regulators.

The Janthina species are known for their vibrant color and unique floating ability. They are typically found in tropical seas.

The dolphin calf was first spotted entangled in the fishing net earlier this summer. And after several weeks, the young dolphin was finally freed from the line and reunited with its mother.

Wisconsin officials are calling off their two-week effort to trap a bear that attacked a 69-year-old woman in Barron County.

A woman had to be rescued from a popular hiking trail in Anchorage, Alaska after being attacked by a brown bear this week.

The four-year-old child mauled by a collared cougar at Olympic National Park this weekend has been released from the hospital, officials confirmed Tuesday.

A volcano erupted on Iceland's Reykjanes Peninsula, prompting evacuations in the surrounding area.

A routine temperature check at the Norris Geyser Basin in Yellowstone National Park led geologists to discover a new blue water spring.