What is the maximal age a Northern elephant seal reaches?
An adult Northern elephant seal (Mirounga angustirostris) usually gets as old as 20.25 years.
Northern elephant seals are around 268 days in the womb of their mother. When born, they weight 34.39 kg (75.82 lbs) and measure 2.6 cm (0′ 2″). As a member of the Phocidae family (genus: Mirounga), their offspring is 1 babies per pregnancy. Fully grown, they reach a bodylength of 3.72 meter (12′ 3″).
As a reference: Usually, humans get as old as 100 years, with the average being around 75 years. After being carried in the belly of their mother for 280 days (40 weeks), they grow to an average size of 1.65m (5′ 5″) and weight in at 62 kg (137 lbs), which is obviously highly individual.
The northern elephant seal (Mirounga angustirostris) is one of two species of elephant seal (the other is the southern elephant seal). It is a member of the family Phocidae (true seals). Elephant seals derive their name from their great size and from the male’s large proboscis, which is used in making extraordinarily loud roaring noises, especially during the mating competition. Sexual dimorphism in size is great. Correspondingly, the mating system is highly polygynous; a successful male is able to impregnate up to 50 females in one season.
Animals of the same family as a Northern elephant seal
Not really brothers and sisters, but from the same biological family (Phocidae):
- Spotted seal becoming 35.5 years old
- Ross seal becoming 21 years old
- Caspian seal becoming 50 years old
- Ribbon seal becoming 31 years old
- Harbor seal becoming 40 years old
- Ringed seal becoming 46 years old
- Leopard seal becoming 26 years old
- Crabeater seal becoming 39 years old
- Grey seal becoming 46.67 years old
- Southern elephant seal becoming 23 years old
Animals that reach the same age as Northern elephant seal
With an average age of 20.25 years, Northern elephant seal are in good companionship of the following animals:
- Verreaux’s sifaka usually reaching 20.58 years
- Nile lechwe usually reaching 18.67 years
- Gray-bellied night monkey usually reaching 18 years
- Klipspringer usually reaching 17.75 years
- Red river hog usually reaching 20 years
- European rabbit usually reaching 18 years
- Bongo (antelope) usually reaching 19.42 years
- Black wildebeest usually reaching 20 years
- Bharal usually reaching 24 years
- Desert warthog usually reaching 18.75 years
Animals with the same number of babies Northern elephant seal
The same number of babies at once (1) are born by:
- Bioko Allen’s bushbaby
- Brown dorcopsis
- Scully’s tube-nosed bat
- Northern nail-tail wallaby
- Wall-roosting mouse-eared bat
- Tricolored bat
- Thomson’s gazelle
- European bison
- Hispid pocket gopher
- King colobus
Weighting as much as Northern elephant seal
A fully grown Northern elephant seal reaches around 1116.2 kg (2460.79 lbs). So do these animals:
- Water buffalo weighting 924.25 kilos (2037.62 lbs) on average
- Black rhinoceros weighting 986.47 kilos (2174.79 lbs) on average
- Northern giraffe weighting 959.83 kilos (2116.06 lbs) on average
- Narwhal weighting 938.06 kilos (2068.07 lbs) on average
- Walrus weighting 1045.33 kilos (2304.56 lbs) on average
- Hector’s beaked whale weighting 1000 kilos (2204.62 lbs) on average
- Sumatran rhinoceros weighting 1038.08 kilos (2288.57 lbs) on average
Animals as big as a Northern elephant seal
Those animals grow as big as a Northern elephant seal:
- Southern elephant seal with 3.69 meter (12′ 2″)
- Javan rhinoceros with 3.1 meter (10′ 3″)
- Northern giraffe with 4.18 meter (13′ 9″)
- Andrews’ beaked whale with 4.26 meter (14′ 0″)
- West Indian manatee with 3.5 meter (11′ 6″)
- Leopard seal with 3.05 meter (10′ 0″)
- Beluga whale with 4.25 meter (14′ 0″)
- Indian rhinoceros with 3.74 meter (12′ 4″)
- White-beaked dolphin with 3.05 meter (10′ 1″)
- African manatee with 3.5 meter (11′ 6″)