What does a polar bear need if he lived in the rain forest?

Answer 1

Because the fur and skin of a polar bear are adapted for cold climates and for retaining heat - a polar bear transplanted to a tropical rain forest would be in desperate need of an auxiliary means to cool off. The coloration of the polar bear would also be a disadvantage in a rain forest where it would not blend in with the surroundings at all - and thus would have considerable difficulty capturing prey to eat. This would result in a second need for its diet to be artificially supplied or at least supplemented. A third possibility is that a polar bear would find that it had no immunity to the many diseases present in the rain forest - the arctic tends to be too cold for most parasites and bacteria to survive, thus polar bears would not have need to develop defenses to most of them. As a consequence, a polar bear would need additional protection from diseases prevalent in the rain forest. The one thing it probably would NOT need is any protection from predators. Polar bears are about the biggest land-based apex predator around in modern times. Any predator around in a rain forest would be severely overmatched in any conflict with a polar bear!