Feared by most, loved my some and hunted by many, sharks are one of the most mysterious groups of creatures roaming the Earth today. Defined as a fish with a full cartilaginous skeleton and a sleek, streamlined body, a shark can range in size from the two foot pygmy shark, to the colossal 50-foot whale shark. There are more than 250 different species of sharks currently identified, making it one of the most diverse animal genera on the planet. Sharks are found in every major body of saltwater in the world, but are more common in warmer waters. There are a small number of shark species that do thrive in fresh water, and certain sharks have been known to venture from their saltwater homes to major freshwater lakes and rivers. Most members of the Shark family are predatory, though some are more ferocious than others. Ironically, the largest of the shark species, the whale shark and basking shark, are virtually harmless plankton eaters. Sharks have an extraordinary sense of smell when it comes to hunting prey, and have been known to be able to sense visually undetectable amounts of animal blood dispersed into the water from considerable distances.
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16-Foot Great White Shark Spotted Near Australian Beach
great white shark
April 16th, 2014
A massive great white shark has been spotted swimming close to an Australian beach, scaring the locals and forcing the beach to close.
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'Shark's Eye' Videos Capture Predators' Mysterious Habits
Shark Sensors
February 27th, 2014
Sharks equipped with sophisticated sensors and cameras are helping researchers uncover new clues about their swimming and eating habits. The novel, "shark's eye" views are illuminating some of the least-understood behaviors of these shadowy predators.
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One-Quarter of Sharks and Rays at Risk of Extinction
January 21st, 2014
A quarter of the world's sharks and rays are at risk of extinction, according to a new assessment by the International Union for Conservation of Nature (IUCN).
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Mysterious Wanderings of Tiger Sharks Tracked
Tiger Shark Restrained Underwater
January 8th, 2014
A new four-year study of tiger sharks off the coast of Australia has revealed patterns in the animals' mysterious migratory wanderings, including curious differences based on the gender and age of the sharks.
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Ancient Nursery of Bizarre Spoon-Billed Sharks Discovered
a depiction of the bandringa fossil shark
January 8th, 2014
A shark nursery dating to 310 million years ago , which may be the oldest confirmed shark nursery, contains the oldest example of baby sharks and egg casings found in the same place, new research reveals.
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Great White Shark On Historic Marathon Migration
shark tagging, white sharks
March 7th, 2014
Lydia the great white shark has migrated more than 19,000 miles since being tagged.
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Captive Shark Ray Gives Birth to Septuplets
shark ray pup, Sweet Pea, captive birth
January 30th, 2014
Sweet Pea, a shark ray, just gave birth to seven pups, making her the first shark ray in captivity to successfully give birth.
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