A baby beaver was spotted swimming in a saltwater river without its parents, according to a Connecticut animal shelter. Screengrab from Waterford-East Lyme Animal Control's Facebook page Rescuers ...

Baby beaver sighting brings hopes of comeback for California’s little climate superheroes. Two beavers swim in Napa Creek, in Napa, in July. (Godofredo A. Vasquez / Associated Press) ...

Why the flat tail: The tail acts as a rudder and helps beavers swim. But the animals also use it to communicate, slapping the water as a warning to scare off predators and intruders.

A Connecticut homeowner found a “little beaver baby” swimming in salt water Oct. 21, according to an Oct. 22 Facebook post from Waterford-East Lyme Animal Control.