X-Band radar systems are able to resolve multiple wave systems, e.g. swell and wind sea systems. Usually, swell is characterized by its phase speed: Swell waves propagate faster than the wind, where as wind driven waves can not travel faster than the wind that generated these waves (see also waves).
There are 28 known species of anemonefish, most of which live in the shallow waters of the Indian Ocean, the Red Sea, and the western Pacific. They are not found in the Caribbean, Mediterranean, or Atlantic Ocean. Surprisingly, all clownfish are born male.
So, too, can sea anemones. They are close relatives of jellyfish and corals and bear similar stinging tentacles. Some sea anemones move around freely, and some hitch rides on the backs of crabs, but most anchor their backsides to rocks and then wave their tentacles around to sting and eat passing prey.