Red Lionfish

The red lionfish is a striking, venomous marine fish native to the coral reefs of the Indo-Pacific region, easily recognized by its elaborate fan-like pectoral fins and long, showy dorsal spines banded in red, white and cream, a bold pattern that serves as a warning of the venom carried in its spines. Its sting, delivered through specialized grooved spines, causes intense pain, swelling and other symptoms in humans, though it is rarely fatal, and lionfish rely on this defense along with slow, deliberate movements to deter predators rather than fleeing from threats. In its native range, the red lionfish is a significant reef predator, hunting small fish and invertebrates by cornering prey with its outstretched fins before striking with a sudden lunge. First introduced to the western Atlantic and Caribbean through the aquarium trade in the 1980s, the species has since become one of the most damaging marine invasive species in the region, rapidly outcompeting and preying on native reef fish in an area where it has few natural predators or parasites to keep its population in check.