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
The number of unprovoked shark attacks spiked slightly last year, while the number of fatal bites doubled compared with the previous year. However, the statistics are not as concerning as they initially sound, experts say.
Two new ancient shark species have been uncovered in Mammoth Cave with teeth that "look like they just came out of the shark's mouth yesterday."
A newborn great white shark has been seen in the wild for the first time, and the discovery could help scientists finally solve a longstanding mystery about the threatened species.
Catch data from 2012 to 2019 reveal shark deaths from fishing increased from 76 million to 80 million per year. Researchers stress that more action is needed to save threatened species.
An adult male silky shark was spotted with a huge chunk of its fin missing. A year later, it had almost completely regrown. Here's the amazing story behind the discovery.
A megamouth shark that was pregnant with seven pups when it washed ashore in the Philippines has revealed secrets about how this elusive species gives birth.
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.
Sign up for the Live Science daily newsletter now
Get the world’s most fascinating discoveries delivered straight to your inbox.