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- Shark - Wikipedia
Sharks are a group of elasmobranch cartilaginous fish 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 Modern sharks are classified within the division Selachii[1] and are the sister group to the Batomorphi (rays and skates)
- Shark Species - Shark Research Institute
learn about some of the 400+ species of sharks All organisms have scientific names, a name that is unique for each species Every species has two Latin names which allow people to be certain they are talking about the same creature no matter what language they speak
- 12 Shark Facts That May Surprise You | NOAA Fisheries
Whale sharks are the biggest fish in the ocean They can grow to 12 2 meters and weigh as much as 40 tons by some estimates! Basking sharks are the world's second largest fish, growing as long as 32 feet and weighing more than five tons
- Shark | Attacks, Types, Facts | Britannica
shark, any of numerous species of cartilaginous fishes of predatory habit that constitute the order Selachii (class Chondrichthyes) Sharks, together with rays and skates, make up the subclass Elasmobranchii of the Chondrichthyes
- List of Shark Species and Facts - ThoughtCo
Learn about some of the 400+ types of sharks Find information on great white sharks, blue sharks, hammerheads, whale sharks, and more
- Shark | Species | WWF - World Wildlife Fund
There are more than 1,000 species of sharks and rays, with new species discovered every year These majestic top predators that are so essential to the natural order of marine ecosystems now face their most severe threat from overfishing Many species are threatened with extinction, with some families of rays such as sawfishes in peril
- Sharks, explained - National Geographic
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
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