Video and lesson investigations on the topic of touch. Key concepts include:
- Some animals have to locate their food by touch.
- Animals have to be able to find food in different locations.
- Some animals have evolved ways of finding their food by using the sense of touch.
- Different parts of animals’ bodies may be sensitive to touch.
- As animal’s behavior adapted and evolved to depend more and more on their sense of touch, some became able to spend their entire lift in dark environments, either in caves or underground.
- For example, various kinds of fish, salamanders, some insects, and crayfish have adapted to totally dark environments. In the dark zone, eyes are useless and many permanent cave-dwellers are blind.
- They depend on touch, smell or hearing for moving around. Many locate prey by sensing vibrations.