- Shark - Wikipedia
Some sharks are filter-feeding planktivores, such as the whale shark and basking shark, which are among the largest fish ever lived Sharks are caught by humans for shark meat or shark fins Many shark populations are threatened by human activities
- Shark | Attacks, Types, Facts | Britannica
Shark, any of numerous species of cartilaginous fishes that make up the order Selachii (class Chondrichthyes) Most species have a tough skin that is dull gray in color and roughened by toothlike scales
- Shark Species — Shark Research Institute
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, explained | National Geographic
Scientists are still trying to figure out how long sharks live and have only studied the ages of a fraction of shark species Most notable is the Greenland shark, Earth’s longest-lived
- Sharks | World Wildlife Fund
There are over 400 shark species worldwide Learn how WWF protects sharks from threats like overfishing and habitat loss
- Shark Facts | Fish | BBC Earth
His cinematic shark tale was so affecting that its release led to a rise in galeophobia and a fear of attacks which scientists have called the ‘Jaws effect’ In real life, sharks come in all shapes, sizes and colours
- Shark Facts - Woods Hole Oceanographic Institution
The smallest shark is the deepwater dogfish (Etmopterus perryi) at only 8 inches and the largest is the whale shark (Rhincodon typus), which, at 13 meters, (42 feet), is the largest fish in the ocean
- Sharks | Smithsonian Ocean
Unlike bony fishes, which have one gill slit on each side of their bodies, most sharks have five slits on both sides that open individually (and some shark species have six or seven) After water flows into a shark’s mouth as it swims, it closes its mouth, forcing the water over its internal gills
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