Cookiecutter sharks, also known as cigar sharks, are unusual, small predators that commonly attack much larger prey. Their upper and lower teeth are quite different, with the hook-like upper teeth being much smaller than... More »

www.reference.com Pets & Animals Marine Life Sharks

Some fun shark facts include that they have no bones, they have skin like sandpaper, have extraordinary sensory skills and teeth that are constantly being replaced. Most sharks never stop swimming and some species give b... More »

www.reference.com Pets & Animals Marine Life Sharks

Whale sharks are the largest fish in the sea and are found in tropical waters that are both deep and shallow. Even though they are huge animals, their diet consists mostly of tiny organisms called plankton. They also eat... More »

www.reference.com Pets & Animals Marine Life Sharks

Tiger sharks live in warm water, can grow to be more than 16 feet long and eat a wide range of food. For instance, tiger sharks aren't picky about their meals, eating birds and sea turtles or dolphins. More »

www.reference.com Pets & Animals Marine Life Sharks

Though sharks are considered apex predators, they are often eaten by humans and are sometimes eaten by killer whales. Shark embryos from different fathers will also eat each other in utero, with the largest embryo of the... More »

Sharks are apex predators that have no natural enemies; however, humans are predators of sharks, with an estimated 30 to 100 million sharks are killed every year by fisherman. This has caused many species of sharks to be... More »

Male sharks are referred to as bulls or simply as males. Female sharks are only referred to as females, and the offspring of sharks are called pups. More »