Crown-of-thorns starfish. Photograph: © SAF – Coastal Care
Excerpts;
Crown-of-thorns starfish are the second biggest threat to the already endangered Great Barrier Reef — the world’s largest coral reef system, right behind tropical cyclones. Over the past decades, they have attacked the reefs in waves of outbreaks, one of which spiked their population to as much as 1,000 starfish per 2 1/2 acres…
