Rough Toothed Dolphin
They are gray with shades of blue on the back and the sides with a paler underside.They do not have a dorsal fin, but a midline dorsal ridge.
Very slow swimmers that roll to the surface and are rarely seen above the water surface. They only dive for up to 15 seconds.
Shallow coastal marine waters around the northern rim of the Indian and western Pacific Oceans from the Arabian Gulf to the Indo-Malay region and to Java, Indonesia
Sharks and killer whales.
Hawaii: frequent sightings indicate high side fidelity.
Social system/Group size
Usually seen in groups of 10 - 20. In the eastern tropical Pacific: mixed groups (pilot whales, Fraser's dolphin).
Entanglement in fishing gear, pollution and overfishing.
The rough toothed dolphin is the smallest cetacean.