Increasing ocean temperatures caused by climate change are leading sharks to be born younger, smaller and weaker.
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
New analysis of rare megalodon fossils revealed that their newborn babies were the biggest live babies in the shark family.
An enormous basking shark washed up dead on the coast of Maine this week. Officials have not determined the cause of death.
Separate shark attacks in Hawaii and the eastern Caribbean leave two people dead. Experts say tragedies like this are rare relative to the number of people in the water.
Scientists have identified five locations that the extinct predator Megalodon used as "nurseries" for young sharks.
It's a mystery why a swordfish stabbed a thresher shark to death, but it's possible they were competing for food.
New analysis of jaws from a shark that lived 370 million years ago revealed a horrific twist (literally) to the predator's toothy grin.
The discovery of nearly 90 shark teeth, largely from young sharks, indicates there was a shark nursery here 24 million years ago.
A program that uses drones to warn surfers of nearby sharks recorded a very close encounter off the coast in New South Wales.
Marine biologists have discovered an enormous great white shark they're calling the "queen of the ocean" off the coast of Nova Scotia.
A new study evaluates massive Megalodon alongside all sharks in the lamniform group — living and extinct. Even among its extinct relatives, Megalodon was unequalled in length and mass.
Stingrays are an instantly recognizable fish. The graceful swimmers glide through the water by undulating the edges of their flat, pancake-like bodies.
Photographs of a shark bearing strange, circular scars could be evidence of a rare giant squid encounter, researchers say.
Researchers dated the growth rings inside two whale shark bones using nuclear bomb carbon leftover from the Cold War.
A group of sharks writhing in shallow water may have looked like they were beached, but they weren't injured or in distress.