Each kind of animal exhibits different behaviors towards stimuli. Some animals respond to light, for example, earthworms escape light and live in soil. Some respond to touch; for example, a millipede, when touched will coil itself immediately. others respond to temperature; for example, during summer and winter snails will bury themselves in soil (with their shells closed) but when the rainy season comes with the right temperature damp earth, snails will go out for food