From Geophysical Research Letters via Science News comes the word that corals off the coast of Japan are moving northward, perhaps in response to the warming of the ocean.
The team, led by geographer Hiroya Yamano of the National Institute for Environmental Studies in Tsukuba, Japan, analyzed maps of corals from four time periods starting in the 1930s. They found that of nine common coral species, four had expanded northward, and two went as far as temperate waters. The study confirms what marine biologists and fishermen have speculated for years.
For some background information on choral reefs, we go to a live performance in which Billy B is supported by a coral group, er, choral group, of schoolchildren. If this song doesn't teach you the word "zooxanthellae," I don't know what will!