Center for Educational Technologies
Earth Science Explorer: Diversity
Written for younger students, this site explains biodiversity and links to easy to understand explanations of species and genetic diversity.
Scholastic
Scholastic: Science Explorations: Animals, Adaptations and the Galapagos Islands
Discover the effects human impact has had on the native organisms of the Galapagos Islands.
PBS
Pbs Teachers:nordic Sagas: Island Life
Explore how life invades, colonizes and changes over time. Model a shallow underwater volcano to see what type of island forms, investigate seed dispersal methods and describe how wing size and shape determine which birds fly where.