Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades This film tells the story of the ecologists who first documented the role of keystone species in ecosystem regulation. Ecology Science Practices Short Films High School — General High School — AP/IB College
Greenhouse Effect This animation provides an overview of the greenhouse effect, a process that warms the atmosphere and surface of Earth. Environmental Science Earth Science Animations High School — General High School — AP/IB College