It is hard to guess what a Grey seal weights. But we have the answer:
An adult Grey seal (Halichoerus grypus) on average weights 197.29 kg (434.94 lbs).
The Grey seal is from the family Phocidae (genus: Halichoerus). It is usually born with about 14 kg (30.86 lbs). They can live for up to 46.67 years. When reaching adult age, they grow up to 2.08 meter (6′ 10″). Usually, Grey 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 grey seal (Halichoerus grypus) is found on both shores of the North Atlantic Ocean. It is a large seal of the family Phocidae, which are commonly referred to as “true seals” or “earless seals”. It is the only species classified in the genus Halichoerus. Its name is spelled gray seal in the US; it is also known as Atlantic seal and the horsehead seal.
Animals of the same family as a Grey seal
We found other animals of the Phocidae family:
- Crabeater seal bringing 225 kilos (496.04 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
- Caspian seal bringing 62.33 kilos (137.41 lbs) to the scale
- Harp seal bringing 132.25 kilos (291.56 lbs) to the scale
- Caspian seal bringing 62.3 kilos (137.35 lbs) to the scale
- Baikal seal bringing 89.5 kilos (197.31 lbs) to the scale
- Northern elephant seal bringing 1116.2 kilos (2460.8 lbs) to the scale
- Hawaiian monk seal bringing 223 kilos (491.63 lbs) to the scale
- Weddell seal bringing 400 kilos (881.85 lbs) to the scale
Animals with the same weight as a Grey seal
As a comparison, here are some other animals that weight as much as the Halichoerus grypus:
- Giant forest hog with a weight of 196.57 kilos (433.36 lbs)
- Dwarf sperm whale with a weight of 183.07 kilos (403.6 lbs)
- Fraser’s dolphin with a weight of 164 kilos (361.56 lbs)
- Père David’s deer with a weight of 165.5 kilos (364.86 lbs)
- Lichtenstein’s hartebeest with a weight of 168 kilos (370.38 lbs)
- Crabeater seal with a weight of 225 kilos (496.04 lbs)
- Okapi with a weight of 230 kilos (507.06 lbs)
- Thorold’s deer with a weight of 161 kilos (354.94 lbs)
- Pygmy hippopotamus with a weight of 231 kilos (509.27 lbs)
- Sambar deer with a weight of 177.52 kilos (391.36 lbs)
Animals with the same size as a Grey seal
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Grey seal:
- Baird’s tapir with a size of 2.2 meter (7′ 3″)
- Atlantic white-sided dolphin with a size of 2.29 meter (7′ 6″)
- Brown fur seal with a size of 1.91 meter (6′ 3″)
- Hawaiian monk seal with a size of 2.24 meter (7′ 5″)
- Moose with a size of 2.1 meter (6′ 11″)
- Saola with a size of 1.75 meter (5′ 9″)
- Takin with a size of 1.74 meter (5′ 9″)
- Onager with a size of 2.25 meter (7′ 5″)
- Crabeater seal with a size of 2.28 meter (7′ 6″)
- Dall’s porpoise with a size of 1.97 meter (6′ 6″)
Animals with the same litter size as a Grey seal
Here is a list of animals that have the same number of babies per litter (1) as a Grey seal:
- Thorold’s deer
- Wroughton’s free-tailed bat
- Southern forest bat
- Fox’s shrew
- Brazilian big-eyed bat
- Lesser horseshoe bat
- Mashona mole-rat
- Thorold’s deer
- Tufted pygmy squirrel
- Mediterranean monk seal
Animals with the same life expectancy as a Grey seal
Completely different animals, but becoming as old as a Grey seal:
- Lar gibbon with an average maximal age of 40 years
- Hamadryas baboon with an average maximal age of 40 years
- Crab-eating macaque with an average maximal age of 38 years
- Crabeater seal with an average maximal age of 39 years
- Indian rhinoceros with an average maximal age of 49 years
- Spotted hyena with an average maximal age of 41.08 years
- Black crested gibbon with an average maximal age of 44.08 years
- Humboldt’s white-fronted capuchin with an average maximal age of 44 years
- Bactrian camel with an average maximal age of 40 years
- Narwhal with an average maximal age of 40 years