Also known as "volcano snails," these gastropods grow a suit of metal-enriched scaly armor and have an enormous heart, which ...

Meet Mosura fentoni, a bizarre 506-million-year-old "sea-moth" with three eyes, claws, and an abdomen full of gills.

Researchers have discovered an ancient moth-like sea predator in a treasure trove of museum fossils in Canada. The ...

Types of large sea slugs called the California sea hare and black sea hare can be found off the coast and in tide pools ...