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

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. When we think about the scope of our world’s diversity, ...

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, ...

Have you ever wondered what the world’s largest land animal might be? While some land animals (giraffes) might be taller, and ...

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, ...

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

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 ...

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 ...

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 ...

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 ...