The Department of Environment and Forest’s Marine Mammals Research (MMR) team has reported the first-ever sighting of rough-toothed dolphins within the Indian waters around Lakshadweep.
The rough-toothed dolphin is a species that is generally found within the tropical and deep warm waters around the globe. In 1823, natural scientists first described this species. The scientific name of this species is Steno Bredanensis.
This species is the only member of the genus Steno, which in Greek means narrow. It beautifully describes the structure of this animal.
This animal has no sub-species.
This is an outsized species. The adult of this species ranges from 2.09 to 2.83 metres long and weighs around 90 to 155 kilograms. If we talk about the males of this species being larger than the females. the foremost visible characteristic of this species is its slender nose and conical head.
The teeth of this species also are distinctive and they have a roughened surface that’s formed thanks to numerous irregular ridges that are narrow.
Its jaw is additionally very distinct with the jowl being white or whitish-pink in colour. the peak of the fin of this species ranges from 18 to twenty-eight centimetres.
This species inhabits the Atlantic, Pacific, Mediterranean, and Indian Oceans. it’s generally found in warm temperate to tropical waters. Fossils belonging to the present are found in Europe and they date from the first to mid-Pliocene.
A single dolphin is birthed by the rough-toothed dolphins after an unknown biological time. At birth, the younglings are around 100 centimetres long and for the primary five years of their life, they grow rapidly. Between the ages of six and ten, the females of this species reach sexual maturity, and among the males, it’s between five to 10 years.