10M views · 37K shares | Known as Spanish dancers, these mollusks are usually only a couple inches long—but can grow up to a foot and a half in length. | National Geographic | Facebook

A black seadevil, an anglerfish known for living thousands of feet beneath the ocean's surface, was spotted swimming close to the ocean's surface. Video captured in Spain's Canary Islands shows the female fish swimming off the coast of Tenerife. | CBS Evening News