Polar bear emerged unseen from Alaska snowstorm to kill woman, baby

As the attack unfolded outside a school, the principal ordered a lockdown and closed the blinds so the children couldn’t see what was happening outside the entrance.

‘The Last of Us’ zombie fungal parasite is real and causes ants to commit suicide

If you thought fictional zombies walking around on film were scary, the condition that turns creatures into mindless eating machines actually exists in nature.

Austin Bat Refuge working to save hundreds affected by arctic blast

Dianne Odegard and her husband Lee Mackenzie run the Austin Bat Refuge which collected about 500 bats that fell from bridges during the blast.

'Medusa’ spotted with first calf of the North Atlantic right whale season

Biologists believe there are less than 350 North Atlantic right whales left in existence and have been considered an endangered species since 1970.

These animals are champions in this year’s Comedy Wildlife Photography Awards

This year’s star is a clumsy, 3-month-old lion cub figuring out his way in the wilds of the Serengeti -- though a sassy penguin topped the list, too.

Manatee relative, 700 new species now facing extinction

IUCN uses several categories to describe an animal’s status, ranging from “least concern” to “critically endangered.” IUCN typically updates the red list two or three times a year.

Photos: Monkeys in central Thailand mark their day with feast

While the entertainment value of the festival is high, organizers are quick to point out that it's not just monkey business.

California swimmer survives shark attack off Pacific coast

A 50-year-old woman is being treated for puncture and laceration wounds after a shark bit her leg at a Southern California beach.

National Park Service: Please refrain from licking this psychedelic toad

The Sonoran Desert toad, also known as the Colorado River toad, secretes toxins that can make people sick and even kill a full-grown dog, officials say.

'Groundbreaking' record number of endangered tadpoles sent to Puerto Rico

The San Antonio Zoo's Herpetology team sent over 18,000 Puerto Rican-crested toad tadpoles in late October to be released into the wild, more than triple the previous record.

Man faces charges after video shows dog harassing endangered seal on Hawaii beach

Officials say they are not releasing the man's identity due to past experiences with people receiving “multiple death threats” after being cited for seal harassment.

The Amazon's largest fish makes a comeback

Even in the most biodiverse rainforest of the world, the pirarucu stands out: It can weigh up to 440 pounds, by far the largest of 2,300 known fish species in the Amazon.

Emperor penguins now listed as threatened species

Emperor penguins will now receive new protections under the Endangered Species Act after the U.S. Fish and Wildlife Service says climate change is threatening to eradicate the species.