The beluga whale (/ b ɪ ˈ l uː ɡ ə /; [4] Delphinapterus leucas) is an Arctic and sub-Arctic cetacean.It is one of two living members of the family Monodontidae, along with the narwhal, and the only member of the genus Delphinapterus.It is also known as the white whale, as it is the only cetacean to regularly occur with this colour; the sea canary, due to …

2024年11月27日 · The oldest female beluga whale from Cook Inlet was 47 years old and appeared to have recently given birth. Belugas generally give birth during summer in areas where the water is relatively warm, as newborn calves lack a …

A female beluga whale will have one calf every 3 or 4 years. These are born near the coast, often near the entrance to large rivers. The calfs are fed on milk which is 30% fat.

Female belugas experience menopause, and a significant portion of their 35–50-year life span may be spent in a post-reproductive phase. Arctic populations of beluga whales are at home in pack ice but must migrate to warmer waters when the sea freezes over completely.

beluga whale facts Basics. Weight: up to 1,600kg, from 600kg for adults, males are about 25% larger than females. Average Length: 2.5 to 6 m long (8.5 - 20 feet)

Beluga whales have a very thick blubber layer that can be up to 5 inches thick. Belugas are about 5 feet long at birth and weigh 90–130 pounds. Adults grow to be 11–15 feet long. Females are smaller than males, rarely growing over 12 feet. Reports of adult beluga weights vary from 1000–3300 pounds.

Beluga whales are extremely social and intelligent by nature and would move around, hunt or migrate in pods. Normally, each pod consists of 2 to 25 individuals (both males and females), although mother belugas often form separate pods with their babies during calving season.

Female belugas attain their adult size at around 7 years of age. Males continue to grow, achieving their larger mass at about 14 years of age (Kastelein et al. , 1994).

As with other toothed whale species, female beluga whales generally grow slightly smaller than their male counterparts. In terms of appearance, the beluga has a fairly stock body with a rounded dome-shaped head. However, the body tapers down towards the rear near its flukes.

Male: In general, male belugas tend to be larger than females. Arctic Ocean and subarctic seas. Recent detailed mapping confirms that belugas are widely distributed in Arctic regions, occurring throughout the northern waters of Russia, Alaska, Canada, West Greenland, and Svalbard. Global: around 200,000.