Frequently Asked Questions Thousands of web sites for educators and students. Support for long-term classroom planning and professional development. Information covering important topics for today's educators and parents. Animal life in action. It explains how energy flows through and nutrients are recycled in the food web.
Viewers also see examples of symbiosis in parasitic, commensalistic, and mutualistic relationships.
In one segment, the video shows how weaver birds get protection from the wasps when the birds build their nest around the wasps'. Bees provide an example of how cooperation within species is a type of interdependency. The video has a feature called Behind the Scenes that shows how a zoo in Thailand is using hogs to nurse Bengal tigers so that the tigers can reproduce more frequently. Another portion of the video shows two students conducting an experiment to investigate the interdependency between goldfish and catfish. The materials are listed with their images and the students model the procedures.