Baby river otters aren't born knowing how to swim but must be taught. Watch this cute scene as a baby otter learns to swim.

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 ... and weigh approximately 130 g (4.6 oz ...