From Maine coons to Siberian tigers, these are the big boys and girls of the animal kingdom put into perspective.

Before scientists shed light on what they were, teeth that washed up on ocean shores were often mistaken for dragon teeth. It ...

Size shapes the way animals move, hunt, and survive. For example, in the ocean, ginormous creatures rely on their massive ...

Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the biggest animal that has ever existed. Whales can be found in every ocean, ...

Tallest giraffe ever recorded was George, a huge Masai male who lived in Chester Zoo in Kenya, who died in 1969. He was 20 ft tall (19ft tall with 1 ft long horns). World’s biggest living giraffe is ...

The Quetzalcoatlus northropi was the largest flying animal that ever lived. The huge pterosaur existed during the Late ...

Animals have horns for a variety of reasons. From being used for defense against other animals, to fighting off other males of the same species during mating season, designating hierarchy within the ...

Killer whales are known for their intelligence and power, even an inclination to sink yachts. Now, research is showing how they take down prey that few other animals can. Orcas in Mexico's Gulf of ...

Whale sharks rank 8th on our list of biggest animals in the world found alive. They hold the title of the largest fish in the world. While the word shark and its looks might awaken different thoughts, ...