Empty shark-egg cases occasionally wash up on coastlines around the world, including in Britain. You may have found some of these strange pouches when you’ve been to the beach. ... (CC BY-SA 2.0) via ...

Surprisingly, only 25 per cent of sharks lay eggs, and the video documents part of this process as the egg is encased in a "leathery pouch" - otherwise known as a "mermaid's purse".

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 ...

Mermaids will swim with Adventure Aquarium's sandbar, sand tiger and nurse sharks on Thursdays through Sundays from Feb. 29 to March 17. They will also take photos with kids and wade with stingrays.