Koralie

Koralie es mikri maral animale, li kalke-skeletes de kel forma korali-rifes e isles in varmi mares.

Fishe in korali-rife

Li maxim multi koralies kunjunkte in kolonies e sekrete exteri kalke-skeletes. Li oldi membres del kolonie gradualim mori, lasant sen skeletes.

Vegetatione solidifika li forlasat skeletes, formant korali-rifes. Inter li tipes de korali-rifes es bare-rifes e atoles.