Corals attacked by toxic seaweed use chemical 911 signals to summon help from fish
Thursday, November 8, 2012 - 15:00
in Biology & Nature
Corals under attack by toxic seaweed do what anyone might do when threatened -- they call for help. A new study shows that threatened corals send signals to fish "bodyguards" that quickly respond to trim back the noxious alga -- which can kill the coral if not promptly removed.