Learn more about anemones!

Learn more about the Atlantic bay nettle!

Learn more about Atlantic horseshoe crabs!

Learn more about the blue blubber jelly!

Learn more about moon jellies!

Learn more about the Pacific sea nettle!

Learn more about the peacock mantis shrimp!

Learn more about sea stars!

Did you know that, instead of swimming or floating, the upside-down jelly spends its life pulsing on its bell in shallow, sunlit water.

There’s evidence that these highly intelligent animals can recognize and have preferences for individual humans, use tools, identify visual patterns and solve problems—surprisingly complex behaviors for an invertebrate closely related to a clam.

These sea nettles, a genus of jellyfish called Chrysaora, live at the Aquarium of the Pacific in Long Beach, California.

The quagga mussel, along with the similar zebra mussel, are considered invasive species.