Bodyguard fish: Corals attacked by toxic seaweed use chemical 911 signals to summon help
Thursday, November 8, 2012 - 14:00
in Biology & Nature
Corals under attack by toxic seaweed do what anyone might do when threatened – they call for help. A study reported this week in the journal Science 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.