Nature - northernimages
Grand Marais

Grand Marais

A family of River otters plays on the docks in the Grand Marais Harbor.
River otters may be more comfortable on dry land than their relations, but they catch their prey in the water. Natural swimmers, all otters have evolved small valve-like skin flaps that cover their ears and nostrils, allowing them to dive to depths of up to 35 feet. With this natural protection, otters can stay underwater for up to five minutes.