Rough-toothed dolphins (Steno bredanensis) are marine mammals found in tropical and warm waters around the world. They have a robust body with a dark gray or black coloration and distinctive rough teeth. These social creatures are known for their curious and playful nature, often seen riding the bow waves of boats. They feed on a variety of fish and squid, using echolocation to locate their prey. Rough-toothed dolphins are considered a data-deficient species, and further research is needed to understand their population and conservation status.