Revered and feared, sharks hold an unparalleled place in the human imagination. They are the ocean’s apex predator. The stuff of nightmares. The lurking specter of myths. Scientists tell us that ...

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 ...

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 ...