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Learn about sharks, a group of cartilaginous fish with diverse shapes, sizes and behaviors. Find out how sharks evolved, how they are classified, and what threats they face from human activities.
Shark species are nondescript in colour, varying from gray to cream, brown, yellow, slate, or blue and often patterned with spots, bands, marblings, or protuberances. The oddest-looking sharks are the hammerheads (Sphyrna), whose heads resemble double-headed hammers and have an eye on each stalk, and the wobbegongs (family Orectolobidae), whose skin flaps and protective coloration closely ...
Learn about the world's most diverse and ancient fish, from their skeletons and teeth to their diets and migrations. Find out how sharks are threatened by overfishing, climate change, and human activities.
Learn about the diversity, anatomy, evolution and ecology of sharks, the top predators of the ocean. Find out how sharks are threatened by fishing, finning and fear, and what is being done to protect them.
Shark Conservation. Protecting shark biodiversity has become an important conservation topic during the 21st century. Several species are apex predators in their habitats that help to determine the dynamics of coral reefs and other marine ecosystems.By the early 2020s many of the world's shark species had suffered tremendous population declines from being caught by accident (as bycatch) in ...
Learn about sharks, a group of cartilaginous, predatory fish that belong to the subclass Elasmobranchii. Find out their physical characteristics, distribution, behavior, and how they hunt, feed, and migrate.
Facts about many sharks from the eight orders of sharks from the Shark Research Institute (SRI). SRI conducts and sponsors rigorous, peer-reviewed field research about sharks and uses science-based information to educate and advocate for shark conservation policies and protections by the world's gov
Learn about sharks, their evolution, diversity, behaviour and conservation status. Discover how sharks are not only ancient and endangered, but also intelligent and diverse creatures that add value to marine ecosystems.
Learn about the different types, characteristics, diet and reproduction of sharks, the ancient predators that have been around for 400 million years. Find out how sharks hunt, feed, mate and protect themselves from parasites and predators.