Sea Cucumber, USA

A card I won in a lottery....along with a matching stamp...and a matching poster...and I never would have known there was something like a Sea Cucumber if I hadnt gotten this card....

Here is what the back of the card says:

"Sea cucumber" is a generic term that encompasses more than 1,000 species of marine invertebrates. The species depicted on this stamp is Enypniastes eximia. These creatures are most abundant on the ocean floor, where they feed on nutrient-rich sediment. A few species, including Enypniastes eximia, swim to higher depths after feeding, probably to avoid bottom-dwelling predators. Enypniastes eximia is transparent, and its coloration varies according to body size; small individuals are pale pink, while large adults are dark brown-red to crimson. This particular species is bioluminescent (?!!).  A predator that strikes Enypniastes eximia (if i write it a few more times, i will probably learn its spelling by heart) is quickly covered with a sticky, glowing skin that makes it vulnerable to its own predators.

Erm...does it even look like a cucumber? And how many sea 'vegetables' are there actually

Either way, very interesting.