Images and pictures of rodents. Common and scientific name are given with the picture.

Find information about diversity among genes, species, and ecosystems that helps answer questions about the importance of biodiversity and how we can save species from extinction.

Interactive and animated maps and timelines of historical events and time periods in American history from pre-European times until post-World War II.

Labeled illustrations demonstrating the diversity of bird mouth parts, each adapted for particular purposes.

Photograph of an alpaca in Peru.

Photograph of an alpaca (in the front) and its relative, a vicugna (in the back). Note the longer neck and shorter hair on the vicugna.

Photograph of alpacas in an enclosure in Peru.

Photograph of a banana slug.

This site created by NatureWorks focuses on the Blue-Spotted Salamander. The content of this resource includes a look at this species' characteristics, range, habitat, food, and more.

This site created by NatureWorks focuses on the Blue-Spotted Salamander. The content of this resource includes a look at this species' characteristics, range, habitat, food, and more.

Located in the north-west of Washington State, Olympic National Park is renowned for the diversity of its ecosystems. Glacier-clad peaks interspersed with extensive alpine meadows are surrounded by an extensive old growth forest, among...