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Animal Weight

How much does a Southern river otter weight?

It is hard to guess what a Southern river otter weights. But we have the answer:

An adult Southern river otter (Lontra provocax) on average weights 7.5 kg (16.53 lbs).

The Southern river otter is from the family Mustelidae (genus: Lontra). When reaching adult age, they grow up to 59 cm (2′ 0″).

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 average adult weight of a Southern river otter is 7.5 kg (16.53 lbs)

The southern river otter (Lontra provocax) is a species of otter that lives in Chile and Argentina. Although called a “river otter”, it inhabits both marine and freshwater environments. It sometimes is considered a subspecies of Lontra canadensis. The southern river otter is listed as endangered, due to illegal hunting, water pollution, and habitat loss.

Animals of the same family as a Southern river otter

We found other animals of the Mustelidae family:

Animals with the same weight as a Southern river otter

As a comparison, here are some other animals that weight as much as the Lontra provocax:

Animals with the same size as a Southern river otter

Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Southern river otter: