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Sharks are a group of elasmobranch cartilaginous fishes characterized by a ribless endoskeleton, dermal denticles, five to seven gill slits on each side, and pectoral fins that are not fused to the head. …

Jul 25, 2019 · Find out about the world's biggest and fastest sharks, how sharks reproduce, and how some sp...

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 …

Apr 19, 2025 · From the massive Whale Shark to the sleek and speedy Great White Shark, the diversity of these apex predators is truly remarkable. Understanding the different types of sharks not only …

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.

Sharks can rouse fear and awe like no other creature in the sea. Find out about the world's biggest and fastest sharks, how sharks reproduce, and how some species are at risk of extinction.

There are more than 500 species of sharks swimming in the world’s ocean. Yet when most people think of these cartilaginous fish, a single image comes to mind: a large, sharp-toothed and scary beast. …

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Jul 17, 2018 · Sharks use their gills to filter oxygen from the water. They are a special type of fish known as "elasmobranchs", which translates into fish made of cartilaginous tissues— the clear gristly stuff …