Structural:

Polar bears live in the Arctic where the air and water temperatures are very cold. They have special adaptations, or features that help them live in that habitat, like webbed feet, a layer of fat, fur that helps them blend in and dry off, and black skin to absorb the sun's heat.

Polar bears behavioral adaptations include their hibernation habits during cold weathers,aggressive behaviours,and communication efforts.

Factors of environment: mammals, such as rabbits and squirrels; birds like ducks, geese and coots; reptiles, including turtles; and amphibians. Bald Eagles also eat carrion, or the remains of dead animals. Bald eagles are opportunistic foragers but prefer fish as their primary food and are found in great densities where fish are abundant. They also eat sea birds and ducks or hunt over grasslands and marshes for small mammals such as rabbits, squirrels, prairie dogs and muskrats. The temperature is around 41 degree celcius.

Behavioural adaptations: They vigorously defend their nesting territory when breeding, yet become gregarious when not breeding.

Structural adaptations: They possess sharp, pointed beaks designed for ripping and tearing prey into bite-sized pieces. They have powerful legs and feet that are equipped with large talons used for killing their prey.