These are the most dangerous ocean animals. Humans killed: 0 Habitat: Indo-Pacific region, Caribbean, Gulf of Mexico Notable features: Colorful, stripped spikes that protrude from its body.

The saltwater crocodile, the largest living reptile, strikes with immense bite force, capable of taking down large land ...

When they are alarmed, these animals will show off the eponymous iridescent blue rings that cover their body and arms. But their adorably small size and Instagrammable appearance is deceptive: ...