Biology and Ecology of Venomous Marine Cnidarians

Seas and oceans cover 71 % of the earth’s surface and they are home to 80% of all life found on the planet . Among the different components of marine life, the phylum Cnidaria (formerly Coelenterata) has been reported to be responsible for more envenomations than any other marine phylum. It is believed that 2% of its known 11000 species are venomous to humans. Incidents caused by jellyfish are com...