Early humans crafted shelters out of whatever materials they could find. A one-question quiz asks learners to identify the type of bones used to construct the hut pictured in a display.

Take a tour of the dinosaur floor and you'll read several theories about why dinosaurs became extinct.

This site is provided for by The Franklin Institute Online. "Open the door and step into your ecosystem." Content describes ecosystems and related material such as biomes, habitats, energy cycle, extinction, recycling, and more.

Online resource for students and teachers to see information on icebergs, fisheries, coral reefs, waves, currents and more. Provides teachers with learning activities. Has its own ask-an-expert site (Ask Dr. Bob), and provides real-time...

Bagheera provides an education site devoted to educating people about vanishing and extinct animals and their impact on the environment.

Read about the program that effects animals from becoming extinct. There are links to other organizations that work with the program.