A typical otter territory provides for many species, like these mute swans. (chirping) After feeding, the cygnets are guided back to the safety of the nest.

Some otter species are not only cooperative breeders, but they also work together to defend their territory from threats. Giant river otters of the Amazon live in family groups of up to 20 members.

Prepare: Pack appropriately, including sunscreen, a flashlight, a first aid kit, water, snacks and sunglasses. Bring layers ...

Anything outside that area was dubbed the "no-otter zone" and stray otters would be rounded up and returned. The San Nicolas experiment struggled, with most of the otters either dying or swimming ...

A 12-year-old Montana boy was attacked by an otter Friday as he and a friend floated down the Big Hole River on inner tubes. Montana Fish, Wildlife & Parks stated in a news release issued Monday ...

Even in adult otters, play is thought to hone hunting skills, reinforce social bonds, and help with scent marking territory. The post Celebrate World Otter Day With These 5 Surprising Otter Facts ...