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.
Sheriff: Hunter accidentally shoots himself during grizzly bear attack
This is the second bear attack in Wyoming in a week.
Watch what a polar bear has to do to move across ice sheets in the Arctic
Video shows the polar bear, the largest carnivore species on the planet, acting as playfully as man’s best friend.
How to stop squirrels, other critters from eating your pumpkins
From cayenne pepper to owl decoys, here are some suggestions from experts on how to safely keep the squirrels at bay this Halloween.
Bear mauls 10-year-old boy in grandparents’ backyard in Connecticut
“I heard him yell ‘bear’ and when I looked up, I saw his leg in the bear’s mouth and the bear trying to drag him across the lawn,” the boy’s grandfather told a local news outlet.
See the invasive Australian crawfish discovered in Texas
Texas wildlife officials said they don't know when the invasive crayfish were first introduced or how far they have spread, but "they can have a negative effect on local species and biodiversity."
Giant sharks once roamed the earth with a mega-appetite, research shows
Based on their digital creation, researchers calculated that the megalodon would have weighed around 70 tons, or as much as 10 elephants.
Alligator attacks, kills 88-year-old woman in South Carolina
The Beaufort County Coroner's Office says it believes the victim slipped into a pond located in the Sun City development and was attacked by the alligator earlier this week.
Killer whales hunt 9-foot great white shark in drone video
One scientist called this "one of the most incredible pieces of natural history ever captured on film."
Watch: Breaching whale jumps out of ocean and lands on top of a Massachusetts fishing boat
The video shows a boat anchored off of Plymouth, Massachusetts when a large whale breaches the water and crashes onto the boat's bow.
Massive 11-foot alligator in Florida lets out vicious roar while being wrangled
This alligator should audition for the next "Jurassic World" movie!
Grizzly bear returns, kills woman after she scared him off an hour earlier
Bear attacks are rare, but a woman camping in Montana scared a bear off only for it to come back to her tent and kill her.
Beloved monarch butterflies are officially on the endangered species list
Monarch butterflies are now listed as endangered because of fast dwindling populations in North America.
Virginia man catches 66-pound blue catfish, breaks state record
The fish – which Jason Emmel caught with a bow and arrow in the Pamunkey River on Monday – was 3 feet, 6 inches long.
In Alabama, rare 400-pound spotted eagle ray jumps into boat, gives birth
"She was weighing the boat down," said April Jones of the spotted eagle ray that made a sudden appearance near Dauphin Island, Alabama.
Watch: Bear cub in Northern Minnesota being a 'twerp,' attacks trail camera
A bear cub in Northern Minnesota is getting called out by researchers for being a “twerp.” The cub's antics were captured on trail camera video, and are adorable.
Shark attack on Florida beach seriously injures teen girl
A family member reportedly jumped in the water and “beat the shark” until the girl was freed.
Bison gores man near Old Faithful at Yellowstone National Park, officials say
It was Yellowstone’s second reported incident this year of a visitor getting too close to the animal, and the bison “responding to the perceived threat,” officials said.
'Biblical' swarms of giant insects swarm Oregon farmland already impacted by warming temperatures
Farmers in Oregon already battling extreme drought and low water supplies are fighting against future grasshopper and Mormon cricket infestations.