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Animal Size

Southern river otter size: How big do they get?

How big does a Southern river otter get? Here is an overview over the average adult age:

A grown Southern river otter (Lontra provocax) reaches an average size of 59 cm (2′ 0″).

When born, they have an average size of 0 cm (0′ 0″). A full-grown exemplary reaches roughly 7.5 kg (16.53 lbs). The Southern river otter (genus: Lontra) is a member of the family Mustelidae.

As a reference: Humans reach an average body size of 1.65m (5′ 5″) while carrying 62 kg (137 lbs). A human woman is pregnant for 280 days (40 weeks) and on average become 75 years old.

The average adult size of a Southern river otter is  (2' 0

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 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:

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: