Species: Steno bredanensis
2 to 2.8 m, weighing 90 to 160 kg
Between 32 and 48 years
It generally lives offshore and in warm (over 25°C) waters no deeper than 1,500 m.
Scientists have little information on the reproduction of the Rough-toothed Dolphin. It is only known that sexual maturity is reached between the ages of 10 and 14 years.
Carnivore feeding on fish and cephalopods.
Morphological characteristics for distinction at sea
- Head: conical shape, slightly domed melon, no demarcation between melon and rostrum
- Fins and flippers: prominent sickle-shaped dorsal fin with a central location and often with scars, long and slightly curved pectoral fins
- Swim sequence: never leaps when swimming, often very close together in groups, often with the beak tip and chin above the surface
- Colouring: darker cape, seen easier close-up and paler lateral region, genital area often pink, body may be covered with scars and white spots on the belly.
Click on the link to see the Rough-toothed Dolphin in 3D:
Did you know?
Steno is Greek and means narrow, referring to the unusual shape of its beak.
Banner photo credit: Pierre Riboulon - Mayotte Découverte