Ethereal: adjective that describes something that is “extremely delicate and light in a way that seems too perfect for this world.” It’s a fun word to use, and from now on when people look it up in ...

From deadly 'living fossils' to glowing sea angels, the ocean floor is home to creatures almost alien to us. Here are five incredible creatures straight from the deep. The deep sea is a world few will ...

(via SciShow) As far as slugs go, sea angels are pretty adorable. But they’re also pretty ferocious predators, in an evolutionary race with their prey, the sea butterfly.