sign up (free!)
Sea Anemone and Clownfish. Contrary to popular belief that clownfish live in any anemone, only 10 percent of anemone species form a symbiotic relationship with the fish, uh-NEM-uh-nee) often mistaken for plants are actually predatory animals closely related to Coral and jellyfish. Anemones are polyps that attach themselves to rocks on the sea bottom or on coral reefs.
Clown fish live in anemones and the two have a symbiotic, mutualistic relationship - that is they each provide a benefit to the other. The clownfish eat small invertebrates that might be harmful to the anemone and the anemone feeds off the fecal matter of the fish. The anemone is venomous and so provides protection to the clownfish which develops an immunity to it.
SUNFLOWER SEA STAR (Gold) - the largest sea star in the world [Pycnopodia helianthoides] by Paul Nicklen. This sea star is draped moplike over a seafloor rock off the British Columbia coast. Though commonly called starfish, sea stars are not fish but echinoderms, more closely related to sea urchins and sand dollars. Only the five-armed species really resemble stars—others may boast as many as 40 appendages.