100-year-old giant tortoise breeds for the first time at Philadelphia Zoo
Animals
Snake Knowledge Quiz: Let's check what you know about these crawling reptiles.
Dinosaur-era sea monster was pregnant with twins when it died
Alligator-Sized Triassic Amphibians Died in Wyoming Mass Extinction, Mysterious 'Bone Bed' Reveals
Bears: Facts about furry omnivores found in many parts of the world.
CDC reports that several types of ticks can carry red meat allergies in the U.S.
History of Cat Domestication
Cats: Facts About Our Feline Friends
Asian Recluse Spider: The Arachnid That Gets Stronger After Ejecting Its Own Penis
Why do cats lick plastic bags?
All fish in the Mariana Trench have the same unique mutations
Scientists Discover 'Inside-Out, Legless, Headless Wonder' That Lived Long Before Dinosaurs
