| 4-H Embryology | | Includes guidelines for incubating and candling eggs, photos, movies, egg cam, and resources. Sponsored by the University of Nebraska Cooperative Extension. |
| Activities in Biology | | Provides interactive quizzes on topics such as cell biology, organ systems, ecology, and photosynthesis. |
| Biology In Motion | | Online activities for learning biology, including animated cartoons, an evolution simulation laboratory, and drag-and-drop quizzes. |
| Biology Online | | Online activities, labs and tutorials. Site available in Spanish. |
| Biotech Adventure | | A site intended to teach users about biology and biotechnology. Includes some educational illustrations and animations that can be downloaded by teachers and other educators for use in their curriculum. |
| Cool Activities for Kids | | Features learning activities about plants, space geology, veterinary science, parasites, ecology, sea otters, pollen, and using a virtual telescope to view genetic material. |
| Cool Science For Curious Kids | | Fun and interactive site to help kids appreciate science. Why are snakes like lizards, and monkeys like moose? Find out here. |
| Dr. Farabee's Online Biology Book | | Well organized and illustrated general biology text from Estrella Mountain Community College, Phoenix, Arizona. Advanced, but very clearly explained and illustrated. |
| Electronic Naturalist | | Information on North American animals and plants with illustrations, text, activities, and access to a naturalist. |
| eNature.com | | The complete nature and wildlife resource featuring the Audubon Guides to plants and animals, outdoor planner and destination guide, habitat Guide, eCards, and newsletters. |
| Fish Olympics | | Introduces the natural history of the sea through a fun game. |
| Forest Speaks Exhibit | | Educational web version of the Visitor's Center exhibit at the Smithsonian Tropical Research Institute in Panama. Includes information on rainforest mammals, frogs, birds and plants. |
| I Can Do That | | Cartoon characters take you on a tour of cells, DNA, RNA and biological techniques. |
| Just for Kids Wildlife Page | | Read about moose, wild turkeys, mosquitos, hummingbirds, and bears. Learn about habitat and wildlife biology. Color a bat, falcon, warbler, or eagle. |
| Living Things | | A look at individual organisms, communities, populations, species, and ecological food webs. |
| OceanLink | | Facts, in-depth articles, ask-a-scientist forum, archive of answers and newsletter on oceans and ocean life. |
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