Crown-of-Thorns Starfish on Coral Reef, Acanthaster planci, Cabo Pulmo Marine National Park, Baja California Sur, Mexico

Crown-of-Thorns Starfish on Coral Reef, Acanthaster planci, Cabo Pulmo Marine National Park, Baja California Sur, Mexico

A crown-of-thorns starfish (Acanthaster planci) feeds on coral near Cocos Island, Costa Rica.

A crown of thorns starfish (Acanthaster planci) feeds on a coral reef growing near an island in the Banda Sea, Indonesia.

A crown-of-thorns sea star (Acanthaster planci) feeds on a living coral colony among the remote, tropical islands of Raja Ampat, Indonesia.

A Crown of Thorns starfish (Acanthaster planci), on a tropical coral reef, in Gaafu Dhaalu atoll, The Maldives, Indian Ocean, Asia

Crown of thorns starfish (Acanthaster planci) eats coral on a healthy reef, Similan Islands, Thailand, Southeast Asia, Asia

Crown-of-Thorns seastar (Acanthaster planci) Adult animal working its way across sand towards a coral reef. Yap, Federated States of Micronesia, Pacific Ocean. More info: This species feeds on coral as an adult and, in the right circumstances, be devestating to large reef areas.