What looks like a spider but isn’t one, lives underwater and breathes through its legs? That would be the mysterious sea ...

Although the "giant" isopod ranges in size from 3 to 20 inches (8 to 51 ... Like a daddy longlegs, the giant sea spider (Colossendeis) has long, delicate legs extending from a smaller body.

While most sea spiders are modest in size, those dwelling in polar regions, such as the giant Antarctic sea spider, exhibit “polar gigantism,” boasting leg spans of up to 20 inches ...

The ocean holds many bizarre deep-sea monsters. As you dive 140 meters ... but those 50 rows of teeth are for filtering krill. The Japanese spider crab is happy to welcome you to 300 meters ...

TOBA, Mie Prefecture--Toba Aquarium curator Takeya Moritaki gasped in shock when he saw a large sea spider feasting on a sea anemone. But it wasn’t the spectacle that startled Moritaki ...