It is hard to guess what a Hawaiian monk seal weights. But we have the answer:
An adult Hawaiian monk seal (Monachus schauinslandi) on average weights 223 kg (491.63 lbs).
The Hawaiian monk seal is from the family Phocidae (genus: Monachus). It is usually born with about 16.28 kg (35.88 lbs). They can live for up to 30 years. When reaching adult age, they grow up to 2.24 meter (7′ 5″). Usually, Hawaiian monk seals have 1 babies per litter.
As a reference: An average human weights in at 62 kg (137 lbs) and reaches an average size of 1.65m (5′ 5″). Humans spend 280 days (40 weeks) in the womb of their mother and reach around 75 years of age.
The Hawaiian monk seal (Neomonachus schauinslandi, formerly Monachus schauinslandi), is an endangered species of earless seal in the family Phocidae that is endemic to the Hawaiian Islands.The Hawaiian monk seal is one of two remaining monk seal species; the other is the Mediterranean monk seal. A third species, the Caribbean monk seal, is extinct.The Hawaiian monk seal is the only seal native to Hawaii, and, along with the Hawaiian hoary bat, is one of only two mammals endemic to the islands.These monk seals are a conservation reliant endangered species. The small population of about 1,400 individuals is threatened by human encroachment, very low levels of genetic variation, entanglement in fishing nets, marine debris, disease, and past commercial hunting for skins. There are many methods of conservation biology when it comes to endangered species; translocation, captive care, habitat cleanup, and educating the public about the Hawaiian monk seal are some of the methods that can be employed.
Animals of the same family as a Hawaiian monk seal
We found other animals of the Phocidae family:
- Crabeater seal bringing 225 kilos (496.04 lbs) to the scale
- Caribbean monk seal bringing 198.38 kilos (437.35 lbs) to the scale
- Ribbon seal bringing 90 kilos (198.42 lbs) to the scale
- Baikal seal bringing 89.5 kilos (197.31 lbs) to the scale
- Bearded seal bringing 280 kilos (617.29 lbs) to the scale
- Leopard seal bringing 352.84 kilos (777.88 lbs) to the scale
- Northern elephant seal bringing 1116.2 kilos (2460.8 lbs) to the scale
- Ringed seal bringing 71.1 kilos (156.75 lbs) to the scale
- Hooded seal bringing 278.95 kilos (614.98 lbs) to the scale
- Harp seal bringing 132 kilos (291.01 lbs) to the scale
Animals with the same weight as a Hawaiian monk seal
As a comparison, here are some other animals that weight as much as the Monachus schauinslandi:
- Roan antelope with a weight of 262.09 kilos (577.81 lbs)
- Okapi with a weight of 230 kilos (507.06 lbs)
- Waterbuck with a weight of 203.2 kilos (447.98 lbs)
- Ross seal with a weight of 208.63 kilos (459.95 lbs)
- Nilgai with a weight of 181.63 kilos (400.43 lbs)
- Onager with a weight of 235.62 kilos (519.45 lbs)
- Equus onager with a weight of 205 kilos (451.95 lbs)
- Crabeater seal with a weight of 225 kilos (496.04 lbs)
- Australian sea lion with a weight of 189.14 kilos (416.98 lbs)
- Giant forest hog with a weight of 196.57 kilos (433.36 lbs)
Animals with the same size as a Hawaiian monk seal
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Hawaiian monk seal:
- Grey seal with a size of 2.08 meter (6′ 10″)
- Atlantic spotted dolphin with a size of 2.13 meter (7′ 0″)
- Crabeater seal with a size of 2.28 meter (7′ 6″)
- Sambar deer with a size of 2.04 meter (6′ 9″)
- Scimitar oryx with a size of 1.91 meter (6′ 4″)
- Caribbean monk seal with a size of 2.29 meter (7′ 7″)
- Sambar deer with a size of 2.04 meter (6′ 9″)
- Mountain zebra with a size of 2.35 meter (7′ 9″)
- Nilgai with a size of 2 meter (6′ 7″)
- Polar bear with a size of 2 meter (6′ 7″)
Animals with the same litter size as a Hawaiian monk seal
Here is a list of animals that have the same number of babies per litter (1) as a Hawaiian monk seal:
- Boehm’s bush squirrel
- Takin
- Beluga whale
- Ryukyu flying fox
- Cyclops roundleaf bat
- Eastern falanouc
- Red-fronted gazelle
- Schneider’s leaf-nosed bat
- Insular horseshoe bat
- Oribi
Animals with the same life expectancy as a Hawaiian monk seal
Completely different animals, but becoming as old as a Hawaiian monk seal:
- Northern plains gray langur with an average maximal age of 25 years
- Gayal with an average maximal age of 26.17 years
- Red-bellied titi with an average maximal age of 25.25 years
- Mantled howler with an average maximal age of 25 years
- South Asian river dolphin with an average maximal age of 28 years
- American badger with an average maximal age of 26 years
- Okapi with an average maximal age of 33 years
- Blue monkey with an average maximal age of 27.08 years
- Collared peccary with an average maximal age of 24.42 years
- Grévy’s zebra with an average maximal age of 26 years