hermit crabs will use whatever shell they find - including a glass one

Crabs in Glass Houses.Scientists at the New Zealand Marine Studies Centre placed glass shells into a hermit crab tank. The crabs moved into the glass shells shortly after, allowing scientists to study the crabs.

A Benthic sea cucumber commonly known as the pink see-through fantasia.

A Benthic sea cucumber commonly known as the pink see-through fantasia (Enypniastes eximia) found about a mile and a half deep in the Celebes Sea in the western Pacific (east of Borneo).

The Barreleye fish might be the most bizarre creature ever found lurking in the deep ocean. Sometimes called a "spook fish," no doubt because of its strange appearance, the barreleye has a completely transparent head. -- click image for more interesting information (!) // photo by MBARI

11 intriguing transparent animals

The transparent-headed fish. With a head like a fighter-plane cockpit, a pacific barrel eye fish shows off it's highly sensitive, barrel like eyes topped by green orblike lenses.

Fast food!

This perfectly timed photo taken by Marina Scarr of an American alligator just about to swallow an unlucky gar fish in Florida, USA. The photograph was submitted to National Geographic’s Annual Photo Contest in the Spontaneous Moments category.

Behold the Flying Buttocks: The Pigbutt Worm

lol I love when new creatures, worms are found! (The ‘pigbutt worm’ or ‘flying buttocks’ is a naughty looking creature newly discovered in the oceanic abyss.

Sea dragon

Leafy & Weedy Sea Dragon - Phycodurus eques The leafy sea dragon or Glauerts Seadragon, Phycodurus eques, is a marine fish in .