"Most otters never display this strong a reaction to dogs or people. By and large, they are curious animals, but not typically aggressive toward people or dogs," Battle said.

Are otters aggressive to dogs?

A dog can harass or injure a sea otter, and a habituated sea otter can easily kill a dog, whether in “play” or out of aggression.

Will an otter kill a dog?

A sea otter is capable of harming and even killing your pet. Interactions between pets and wild animals are often interpreted as play, a term to which we often apply a human perspective. "Play" between a dog and a sea otter has been known to result in fatality to the pet.