Pineapple Upside-Down What? - Cassiopea sp.

Well - not really pineapple. But upside-down for sure. The upside-down jellyfish, Cassiopea, lives in tropical Carribean waters where it makes its living acting somewhat like a mobile sea anemone. Like anemones and other jellyfish it has tentacles equipped with stinging cells used to capture small animals and to protect the jellyfish from predators. But unlike other jellyfish, it doesn't dangle the tentacles down, it holds them up as it sits on the bottom in an inverted position.

Cassiopea sp.