Concord Consortium
Concord Consortium: Stem Resources: Competition
An interactive activity where students study how two species of producers are affected by a consumer. By completing several virtual experiments and collecting data, students will be able to summarize what plants can do to defend...
CK-12 Foundation
Ck 12: Biology: Competition
[Free Registration/Login may be required to access all resource tools.] Describes how interspecific competition affects extinction and specialization.
CK-12 Foundation
Ck 12: Biology: Interdependence of Living Things
[Free Registration/Login may be required to access all resource tools.] Covers how species interact with each other.
TED Talks
Ted: Ted Ed: Cannibalism in the Animal Kingdom
Until recently, scientists thought cannibalism was a rare response to starvation or other extreme stress. Well-known cannibals like the praying mantis and black widow were considered bizarre exceptions. But now, we know they more or less...
Smithsonian Institution
National Museum of Natural History: American Mammals: Belding's Ground Squirrel
Belding's Ground Squirrels spend almost three-quarters of their lives hibernating in large underground colonies, so they have only three months a year to forage, grow, and reproduce. Females come into estrus on a single day for a few...