Adaptation: Predator - Prey
by Reprinted with permission
This excerpt is from the trial edition of OBIS. This activity was developed by Outdoor Biology Instructional Strategies, Lawrence Hall of Science, University of California, Berkeley, California.
Communities of plants and animals always include predators and prey. Predators have adaptations, enabling them to capture and eat their prey. In this activity these adaptations are referred to as Predator devices.
A predator device is only one type of animal adaptation. An adaptation is any special feature of an organism that improves it chances of surviving and reproducing.
When prey have been isolated, have participants try to build simple devices analogous to the claws, beaks, and jaws of likely predators. Use simple materials such as those on the materials list, and whatever can be found "on location" at the study site.
If you wish to provide more direction for participants, distribute an Action Card (an index card or piece of paper that contains a challenge from the list below) to each. Every participant can then try to build a predator device to meet the challenge on his card.
SAMPLE ACTION CARDS:
Whatever approach is used, participants will enjoy demonstrating their devices to the group after finishing construction.
What do you Think?
Why are there so many different kinds of predator devices:
Have everyone look for predators in the study site and decide what kind of prey they are adapted to eat.
Reprinted with permission