These felines can crush a turtle shell and kill other animals four times their own body weight as a major predator of the ...

Millions of animals are at risk, but what are the rarest animals in the world? These are some of the most endangered animals, ...

Most sharks rely on continuous water flow through their gills to breathe. Scientists believe they enter an ideal state instead of deep sleep, allowing them to keep swimming.

some animals use speed or camouflage, while others rely on bizarre defenses. Sperm whales dive over 3,000 meters deep to escape threats, holding breath for up to 90 minutes, evading most predators.