Special characteristics that make an organism more suited to its environment.
Alligators help other Everglades animals by keeping water holes open.
A female builds a large nest of debris close to the water and guards her eggs and young. This is very unusual behavior for a reptile. Alligators can stay under water for up to an hour. It swims under water to spear small fish. When back on land they hang their wings out to dry so they can fly again.