Polar Bears

How Fast Can a Polar Bear Swim

A Polar Bear can swim at a speed of 10 km/h i.e. 6.2 mph.
Polar bears love to spend hours at a time in water over long distances.
Normally, Polar bears can swim for 7 to 10 hours a day.
Polar bear are incredible swimmers and they don’t hesitate to swim across wide leads and bays. Polar bear can swim for 100 km (62 miles) in a single event with ease.
http://zooologist.com/how-far-can-a-polar-bear-smell-polar-bear-smell/

A Polar bear can smell a seal that is at a distance of 32 km i.e. 20 miles away from it. This is indeed an extraordinary sense of smell. Not only this, Polar Bear can smell a seal which is 3 feet beneath the ice from a distance of 1 km i.e 0.6 miles https://buff.ly/2FvQZrl