National Conservation Zoo

Opening times today: 10am - 4pm (Last entry at 3pm)

About

In the waters of the Amazon, the giant otter is known as the ‘river wolf’ due to its large, razor sharp teeth and muscular body.

It is the biggest of all the otters, mainly eating a diet of fish which it catches with expert skill as its wing-like tail and webbed feet allow it to move rapidly through the water. They can eat up to nine pounds of food per day!

Giant otters can also move quickly over land, often travelling several hundred metres to get one from area of water to another.

Also known as the South American otter, giant otters live in family groups of monogamous parents and their offspring. 

Giant Otter at Chester Zoo

Giant otter facts

SPECIES
I am a mammal

As the name suggests, the giant otter is the largest of its species.

FOUND IN
South America

Giant otters can be found near the Amazon, Orinoco and La Plata River systems.

HABITAT
Swamps, flooded forests and rivers

These areas provide proximity to the fish that giant otters eat.

DIET
Carnivore

Giant otters primarily eat fish, such as perch, piranha and catfish. They will also eat crabs, snakes, and even small caimans and anacondas.

BEHAVIOUR
Social and peaceful

Giant otters are highly social animals that live together in family groups of up to 20 individuals. A family has a large home range and consists of a mated pair and their offspring of several generations.

AVERAGE SIZE
1.5 - 1.8m

They’re the largest otter, but have the shortest fur!

LIFE SPAN
10 - 13 years

Although with human care they can live for up to 21 years.

ZOO LOCATION
Giant otters

You'll find the giant otters next to the Humboldt penguins.

IUCN red list statusEndangered
Animal vulnerability index

Threats

Giant otters are threatened by human activity. Territory expansion, mining and hunting are some of the factors causing their numbers to decrease.

Logging and farming destroy giant otter breeding sites, and mining poisons the rivers where they live with mercury.

They are hunted for their water-resistant fur and for their meat. Between 1950 – 1970, 20,000 otter pelts were exported from Peru alone. The trade in giant otter fur was banned in 1973, but they are still under threat. 

Threat Humans
Human intervention
Threat Hunting
Hunting
Threat Energy Production
Mining