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

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, ...

Out of the 28 species of crocodiles on the planet today, there is one species that has the distinction of being the largest ...

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

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 ...

A replica fossil of the titanosaur _Patagotitan_, one of the largest dinosaurs ever discovered. It would have weighed about 70 tons (63.5 metric tons.) Spencer Platt/Getty Images News via Getty Images ...

A mama sea creature and her baby were spotted off the coast of California, a group said. Getty Images/iStockphoto The largest animal on Earth and her baby were spotted off the coast of California and ...

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 ...

Scientists have sequenced the largest known animal genome — and it's 30 times bigger than the human genome. The genome belongs to the South American lungfish (Lepidosiren paradoxa), a primeval, ...

Scientists have sequenced the largest genome of all animals, the lungfish genome. Their data help to explain how the fish-ancestors of today's land vertebrates were able to conquer land. Thirty times ...

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, ...