Synanceia

Synanceia, commonly known as the stonefish, is a highly venomous marine fish found in the Indo-Pacific region. It is well-camouflaged, blending seamlessly with rocks and coral on the ocean floor. Despite its unassuming appearance, it has spines on its back that release potent venom when stepped on or threatened, causing intense pain, swelling, and in severe cases, respiratory issues. The stonefish's venom can be dangerous to humans, requiring prompt medical attention. It’s considered one of the most venomous fish in the world, but it generally relies on its camouflage for protection rather than aggression.