Animals
Why Do Cats Have Vertical Pupils?
A cat's vertical pupils do more than control light. Research connects their shape with judging distance while ambushing prey close to the ground.
ANIMALS
Animals
The anatomy, behavior, and remarkable adaptations of the animal world.Animals
Polar Bear Fur Isn't Actually White — It's Transparent
The seemingly white fur of polar bears is actually colorless and transparent, while their skin underneath is closer to black.
Animals
Octopuses Have Three Hearts and Blue Blood
Octopuses are mysterious creatures with three hearts and blue blood, a unique physiology that helps them survive in the cold depths of the ocean.
