United Airlines said a dog that died in an overhead bin Monday should've never been in there, but a passenger says it was a flight attendant's idea.
A frog named Romeo could be the last known water frog of his species.
While climate change warms Earth's waters, it also creates another problem: a big loss of oxygen in water.
DNA testing shows supposed yeti samples are actually from bears and a dog.
Poisonous and venomous animals have several tricks so their own defense mechanisms don't hurt them.
When an asteroid struck Earth 66 million years ago, it didn't just cause mass extinctions — it might've put our planet it darkness for years.
Junk food is a go-to bait to attract bears; it's used so much that the animals are now integrating the high-calorie snacks as a dietary mainstay.
Researchers analyzed the DNA of about 350 mummified cats to trace how felines became the household animals we love today.
Denver7 heard a family's plea about their dog, presumed stolen, and literally found the solution
The National Institutes of Health said it would stop lab-testing chimpanzees, so sanctuaries are scrambling to get new homes ready for the animals.
Scientists have discovered how to breathe life back into species that were once considered extinct — but doing that could have consequences.
Going to the hospital for surgery is nerve-wracking, even for dogs.