Naturalist Stan Tekiela explores the enduring charm, biology, and resilience of sea otters during a recent photo tour in ...

A river otter may swim at speeds up to 9.7 km/hr (6 mph), and remain submerged for several minutes at a time, diving 13.7 m (45 ft) or covering 402 m (1320 ft) while submerged. Although river otters ...