
Harlequin Shrimp
This Harlequin Shrimps, Hymenocera picta are usually found in pairs, with the male being the smaller of the two. They feed on sea stars, mostly the blue sea star. Despite their size, they are capable of cutting an arm of the sea star and dragged it to its 'home', usually under some rocks, and slowly consumed the sea star while keeping it alive.

"Hymenocera picta", commonly known as the harlequin shrimp, is a species of saltwater shrimp found at coral reefs in the tropical Indian and Pacific oceans. They reach about 5 centimetres in length, live in pairs and feed exclusively on starfish, including crown-of-thorns starfish.