An annotated and illustrated catalogue of shark species known to date. by Leonard J.V. Compagno, Ph.D., the world’s foremost expert on sharks and Director of our Board of Trustees.

Nov 19, 2024 · Sharks, having evolved in Earth’s oceans more than 400 million years ago, have changed little since their emergence. Their streamlined bodies were built for speed and …

Follow sharks like Contender, Nukumi, and Mary Lee as they navigate our oceans. The data you see helps power science and protect marine ecosystems. By collaborating with world-class researchers …

There are over 400 shark species worldwide. Learn how WWF protects sharks from threats like overfishing and habitat loss.

May 17, 2024 · Sharks are often characterised as vicious killers, but in reality, they’re a diverse and endangered group of creatures that add tremendous value to marine ecosystems. Despite having a …

Although most shark species inhabit the seas, a few exceptions including the river shark and bull shark can swim both in freshwater and seawater. They commonly live at depths of about 2,000 m (7,000 ft) …

Aug 13, 2024 · There are over 400 species of sharks, each with unique features and habitats. Whale sharks are the biggest shark species, but they eat tiny plankton and crustaceans. Some sharks, like …

Jun 11, 2025 · Sharks are ancient, diverse predators with over 500 species. They're vital to ocean health—but slow to reproduce and threatened by overfishing.

There are more than 500 species of sharks swimming in the oceans today, which are split across eight orders: Carcharhiniformes; Hederodotiformes; Hexanchiformes; Lamniformes; Orectolobiformes; …

Dec 29, 2025 · Sharks make up a family of elasmobranch fishes. They also have about five to seven slits on the side of their head for their gills. Their pectoral fins are not fused to their heads. Experts …