World Otter Day 2026

By /

The last Wednesday in May is World Otter Day.

There are 13 otter species worldwide, 12 of which are in decline — seven classified as vulnerable, five as endangered — threatened by habitat loss, reduced prey, roadkill, and illegal trade for fur and pets. Otters are keystone species that help regulate fish populations and maintain healthy aquatic ecosystems — sea otters, for example, keep sea urchin populations in check, which protects kelp forests from being grazed out of existence. This year marks the 10th anniversary of World Otter Day, with events planned across 50 countries.

The North American river otter (Lontra canadensis) is one of the better conservation comeback stories on the continent. Historically present in watersheds across the entire continental U.S., they were wiped out from 11 states by the early 1900s through unregulated fur trapping and habitat destruction. Recovery came through a combination of reintroduction projects across 22 states, cleaner waterways, and natural population expansion — and numbers have been climbing steadily since.

Built for the water — streamlined bodies, fully webbed feet, and a thick tapered tail — they’re powerful swimmers capable of staying submerged three to four minutes, with ears and nostrils that seal shut underwater. Primarily visual predators, they also rely on motion-sensitive whiskers to track prey in murky water, eating mostly fish but taking amphibians, crayfish, small mammals, and waterfowl when available.

In January 2022, I was fortunate enough to come across a family of river otters hanging out in some open water amongst the mostly frozen-over Lake Almanor in Plumas County California.

This one played a bit of peek-a-boo with me on a chilly morning….

This one is looking my way as if to say, “Come on in. The water’s fine.” I didn’t believe that for a second…

River otter swimming through a narrow band of open water at Lake Almanor in Plumas County, California, its head lifted above the surface and catching warm side light. The otter’s whiskered face appears alert as its sleek brown body trails behind, partially submerged in the mix of thin ice and rippling reflections. Subtle golden highlights contrast with cool blue-gray tones of the lake, emphasizing the animal’s easy movement along the edge of winter ice.

I think that USED to be a carp…

This one emerged from the water fairly close to me (and looked scary close through my telephoto lens – I want nothing to do with those teeth!)

River otter climbing onto snow-covered shoreline at Lake Almanor in Plumas County, California, its wet fur glowing with warm late-afternoon light. The animal’s whiskered face and dark paw are sharply defined as it moves from icy water toward sunlit rocks, with rich brown tones contrasting against the pale, granular snow. Strong side lighting emphasizes the slick texture of its coat and the alert, purposeful posture as it navigates the winter shoreline.

That’s all for now. Get out and enjoy nature!

Leave a Reply

Scroll to Top