Maybe you've seen a "mermaid's purse" while walking on the beach. Not actually an accessory for the mythical creature, these small casings are the eggs of sharks and their relatives. For around 455 ...

In the animal kingdom, pregnancy rarely follows the rules, with many species being pregnant for a year or more.

Drone footage shot off the coast of Southern California may have revealed the first ever glimpse of a newborn great white shark in the wild. The 1.5-meter-long (5-foot-long) white shark was spotted on ...

The Greenland shark—the world's longest-living vertebrate—is most often associated with cold Arctic waters. However, a new international study led by researchers from the Greenland Institute of ...

1. Introducing sharks, skates, rays, and chimaeras -- What are sharks and how are they classified -- How many kinds of sharks are there -- How did sharks get their name -- Where do shards live -- When ...

The Greenland shark – the world's longest-living vertebrate – is most often associated with cold Arctic waters. However, a new international study led by researchers from the Greenland Institute of ...