It is hard to guess what a Eurasian otter weights. But we have the answer:
An adult Eurasian otter (Lutra lutra) on average weights 8.86 kg (19.54 lbs).
The Eurasian otter is from the family Mustelidae (genus: Lutra). It is usually born with about 285 grams (0.63 lbs). They can live for up to 22 years. When reaching adult age, they grow up to 68.9 cm (2′ 4″). On average, Eurasian otters can have babies 1 times per year with a litter size of 2.
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 Eurasian otter (Lutra lutra), also known as the European otter, Eurasian river otter, common otter, and Old World otter, is a semiaquatic mammal native to Eurasia. The most widely distributed member of the otter subfamily (Lutrinae) of the weasel family (Mustelidae), it is found in the waterways and coasts of Europe, many parts of Asia, and parts of northern Africa. The Eurasian otter has a diet mainly of fish, and is strongly territorial. It is endangered in some parts of its range, but is recovering in others.
Animals of the same family as a Eurasian otter
We found other animals of the Mustelidae family:
- Beech marten bringing 1.67 kilos (3.68 lbs) to the scale
- Pygmy spotted skunk with a weight of 365 grams
- Nilgiri marten bringing 2.04 kilos (4.5 lbs) to the scale
- Saharan striped polecat with a weight of 218 grams
- Steppe polecat bringing 1.68 kilos (3.7 lbs) to the scale
- Smooth-coated otter bringing 8.96 kilos (19.75 lbs) to the scale
- Marbled polecat with a weight of 594 grams
- Tayra bringing 4.14 kilos (9.13 lbs) to the scale
- Sunda stink badger bringing 2.5 kilos (5.51 lbs) to the scale
- Marine otter bringing 11.2 kilos (24.69 lbs) to the scale
Animals with the same weight as a Eurasian otter
As a comparison, here are some other animals that weight as much as the Lutra lutra:
- Southern river otter with a weight of 7.5 kilos (16.53 lbs)
- Indri with a weight of 8.61 kilos (18.98 lbs)
- Black-backed jackal with a weight of 8.29 kilos (18.28 lbs)
- Black-headed spider monkey with a weight of 9.07 kilos (20 lbs)
- Toolache wallaby with a weight of 10 kilos (22.05 lbs)
- Bennett’s tree-kangaroo with a weight of 10.48 kilos (23.1 lbs)
- Southern pig-tailed macaque with a weight of 7.85 kilos (17.31 lbs)
- Dingiso with a weight of 9.4 kilos (20.72 lbs)
- Northern white-cheeked gibbon with a weight of 7.32 kilos (16.14 lbs)
- Black colobus with a weight of 9.1 kilos (20.06 lbs)
Animals with the same size as a Eurasian otter
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Eurasian otter:
- Tana River red colobus with a size of 56 cm (1′ 11″)
- Western red colobus with a size of 57.4 cm (1′ 11″)
- Tana River red colobus with a size of 56 cm (1′ 11″)
- Black dorcopsis with a size of 59.2 cm (2′ 0″)
- Delacour’s langur with a size of 57.7 cm (1′ 11″)
- Red-rumped agouti with a size of 57.4 cm (1′ 11″)
- Blue duiker with a size of 69.3 cm (2′ 4″)
- Binturong with a size of 78.7 cm (2′ 7″)
- Bush dog with a size of 62.6 cm (2′ 1″)
- European badger with a size of 70.7 cm (2′ 4″)
Animals with the same litter size as a Eurasian otter
Here is a list of animals that have the same number of babies per litter (2) as a Eurasian otter:
- Chisel-toothed kangaroo rat
- Mexican woodrat
- Somali serotine
- Northern palm squirrel
- Brown bear
- Gray-bellied tree mouse
- Travancore flying squirrel
- Watson’s climbing rat
- Mozambique thicket rat
- Pygmy marmoset
Animals with the same life expectancy as a Eurasian otter
Completely different animals, but becoming as old as a Eurasian otter:
- Celebes crested macaque with an average maximal age of 18 years
- Venezuelan red howler with an average maximal age of 25 years
- Mantled guereza with an average maximal age of 24.5 years
- Giant forest hog with an average maximal age of 18 years
- Masked palm civet with an average maximal age of 18 years
- South American fur seal with an average maximal age of 21 years
- Weddell seal with an average maximal age of 25 years
- Black wildebeest with an average maximal age of 20 years
- Moose with an average maximal age of 25 years
- South American sea lion with an average maximal age of 24.75 years