Search results
Results from the WOW.Com Content Network
A typical precocial mammal has a gestation period almost four times longer than a typical altricial mammal of the same body size. [20] Precocial mammal species generally have greater adult body weights than altricial mammals as precocial mammals have markedly longer gestation periods than altricial mammals. [21]
The short-beaked common dolphin has a gestation period of 10 to 11 months. [10] The newborn calf has a length of 70 to 100 centimetres (2.3 to 3.3 ft) and weighs about 10 kilograms (22 lb). [7] For the Black Sea population, weaning occurs at between five and six months, but occurs later (up to about 19 months) in other areas.
The gestation period varies with species; for the small tucuxi dolphin, this period is around 11 to 12 months, [91] while for the orca, the gestation period is around 17 months. [92] Typically dolphins give birth to a single calf, which is, unlike most other mammals, born tail first in most cases. [93]
The gestation period usually last for one year. Individuals are believed to live up 40 years or more. [6] The Pacific white-sided dolphin is extremely active and mixes with many of the other North Pacific cetacean species. It readily approaches boats and bow-rides.
The spinner dolphin has a 10-month gestation period, and mothers nurse their young for one to two years. Females are sexually mature at four to seven years, with three-year calving intervals, while males are sexually mature at seven to 10 years. [5] Spinner dolphins live for about 20-25 years. [18]
When a dolphin hears their own “name” called to them, they respond. Image credits: ... The gestation period of an orca is about 17 months which is the longest of all cetaceans. Females may ...
[5] [6] The gestation period is 11 months and lactation lasts for about 18 months — both typical figures for dolphins. [4] Atlantic white-sided dolphins are known to live for at least 17 years. [4] The key distinguishing feature is the dolphin's coloration—a white to pale-yellow patch is found behind the dorsal fin on both sides of the body ...
These dolphins are thought to reach sexual maturity at seven to nine years. In the Northern Hemisphere, mating is reported from December to June. Its gestation period is 14 months; cows give birth to a single calf every two to three years. Length is about 1 m (3.3 ft) at birth. Birth weight is about 10 kg (22 lb). Weaning is after two years.