Give a couple of examples of adaptation.

One of the physical adaptations, is the hard shell of the crab, which protects it from predators, dries up and grinds up in waves. Behavioral adaptation in the oceans is the use of loud, low-frequency waves to communicate with other whales over long distances.

Other physical adaptations that have been structurally modified may include webbed feet, sharp claws, and large beaks. Other changes made to a body part could be wings, feathers, fur, or scales.