The Polar Bear is the most popular Threatened Species in the USA.

Dutiful mothers, female polar bears usually give birth to twin cubs, which stay with her for more than two years until they can hunt and survive on their own.

It is so popular a child's activity book entitled "Fur and Feathers" includes the bear (click here).

Average life span, 25 to 30 years

Size: Head and body, 7.25 to 8 ft (2.2 to 2.5 m); Tail, 3 to 5 in (7.5 to 12.5 cm)

 Weight: 900 to 1,600 lbs (410 to 720 kg)

I've seen one standing up on it's hind legs. They are huge. I mean gigantic. They are also very powerful when they are healthy, well nourished. They are one of the most magnificent creatures I have ever seen in the wild. Amazing mothers, too.

You'll never convince those animals do not feel love for their young. They most certainly do. They thrive on instinct, but, they nurture based in love and loyalty. 

Their diet preferences are: Polar bears feed mainly on ringed and bearded seals. Depending upon their location, they also eat harp and hooded seals and scavenge on carcasses of beluga whales, walruses, narwhals, and bowhead whales. But, when all else fails they are known eat fish, too.