Feared by most, loved by 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
Scientists have analyzed the remains of a great white shark that washed up in Australia in October and confirmed orcas disemboweled the predator to eat its liver — a first in these waters.
Researchers recorded the movements of ocean predators and found many diving to depths of over 3,200 feet for reasons that are currently unclear.
An epaulette shark pup born in August at Brookfield Zoo hatched from an egg that was not fertilized by a male shark. It's the second time this species has undergone a virgin birth in captivity.
Astonishing footage from Planet Earth III, which premieres Nov. 4 on BBC America and AMC+, shows a herd of seals fending off an attack by the world's most notorious predator off the southern coast of Africa.
Scientists have performed a necropsy on a great white shark that washed up in Nova Scotia — the fifth unexplained stranding of its kind in a year — but were unable to determine the cause of death.
Orcas have been feasting on sharks' livers off the coast of South Africa for several years and could now be doing the same in Australia, the carcass of a great white suggests.
In the 1990s, a group of juvenile bull sharks were left stranded in a golf course pond in Australia, where they thrived for decades. Now scientists are trying to understand why.
Researchers tracked more than 200 bull sharks off the coast of New South Wales to find out exactly when they were most active and posed the greatest risk to humans.
Researchers have discovered that hundreds of great white sharks that vanished from their home off the Western Cape of South Africa have moved east in order to survive — but this could spell trouble for both the sharks and the people living there.
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