How are seasonal behaviors of bears and penguins alike and different?

The polar bears show individualist and penguins show collective behaviour.

Explanation:

The polar bears and penguins live on the opposite sides of the poles but have a similar environment and both share a prey and predator relationship.They both are aquatic species. Hence both have great diving speeds and can go to greater depths.Both of them can camouflage in the snowy background and get protecting form any possible threats.Insulation the polar bear has dense furs and that is oily and that acts as water-resistant materials. Similarly, the penguins have insulating feathers.The penguins are social animals as they live in colonies and consist of large numbers while the polar bears live in solitary.

Resistance than a bicycle? i'm not entirely sure

C14 dating since carbon is present in both living and no living objects .