The average litter size is 2 or 3 (range 1-6). Newborn otters are blind, fully furred, and weigh approximately 130 g (4.6 oz). Their eyes open by 35 days. The young begin to venture outside the natal ...

Giant otters live in family groups which include monogamous parents and the offspring from several breeding seasons. They den by burrowing into banks or under fallen logs, and establish a home ...