CK-12 Foundation
Ck 12: Episd: Predation
[Free Registration/Login may be required to access all resource tools.] Discover the predator prey relationship and the ways organisms adapt to predation. Understand the impact predation has on population size and evolution.
University of Arizona
Univ. Of Az: Spiders: An Organism for Teaching Biology
Young scholars capture spiders and then conduct various experiments to identify their spider, analyze its feeding rate, and discover its effect on populations of insects. Includes directions for student activities and teaching tips.
University of California
Regents of the University of California: Amphibia Web
AmphibiaWeb, a site inspired by global amphibian declines, is an online system that allows free access to information on amphibian biology and conservation. This site is filled with amphibian facts, a glossary of terms, species numbers,...