Whale that vanished from Atlantic over 200 years ago spotted off Massachusetts: 'Shouldn't exist'

Scientists from the New England Aquarium (NEA) in Boston were flying off the coast of Nantucket on Friday when they saw a leviathan that has been extinct for over 200 years: a gray whale.

White shark breaks records with historic journey from South Carolina to Mexico

A white shark, LeeBeth, recently made a historic journey from South Carolina to Mexico, marking the furthest westward tracking of a white shark in the Gulf of Mexico.

March Napness: Contest underway to find the sleepiest sanctuary bear

You’ve heard of March Madness and Fat Bear Week, but are you ready for March Napness? As hibernating season comes to an end, the search is on for the sleepiest sanctuary bear.

Joro spiders known for giant webs poised to invade more US cities, study warns

Joro spiders have been found in new research to be even more "urban tolerant" than previously believed, setting these creatures up to invade even more U.S. cities.

Colorado man bitten by pet Gila monster dead days later

Two Gila monsters and 26 spiders of different species were removed from the home after the rare bite, authorities said.

Watch: Donkeys interrupt meteorologist’s report, stealing the spotlight

Ohio meteorologist Matt Willoughby's broadcast took an unexpected turn when a herd of donkeys wandered into the frame, leaving him momentarily stunned.

Man killed by lion after entering enclosure at zoo: 'The animal attacked'

A zoo guest who decided to climb a wall to enter a lion enclosure to apparently take a selfie was mauled to death by the animal Thursday, according to reports.

Chernobyl’s mutant wolves developing resistance to cancer, study says

Wolves in Chernobyl’s radiation zone appear to have developed a resistance to cancer after being exposed to high levels of radiation in the wake of the nuclear disaster 35 years ago, according to a new study.