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
The Geologic Carbon Cycle This animation explores how carbon enters the atmosphere and can be removed through a series of chemical reactions. Earth Science Animations High School — General High School — AP/IB College