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Biology and Nature (see also Ecology & Environment)
General / Nature
Canadian Nature Federation: http://www.cnf.ca/
Internet Biology Ed: http://www.botany.uwc.ac.za/sci_ed/
teaching aids & more.
National Fish & Wildlife Foundation: http://www.nfwf.org/
Using Science Fiction to understand Biological Concepts: http://www.woodrow.org/teachers/bi/1994/science_fiction.html
Zoos and Aquariums of AZA: http://www.aza.org/
Birds
American Birding Association: http://www.americanbirding.org/
Cornell Ornithology: http://birds.cornell.edu/
National Audubon Society: http://www.audubon.org/
Operation Ruby Throat (Hummingbird Project): http://www.rubythroat.org/
Peterson Online: http://www.petersononline.com (Houghton Mifflin Co.)
Smithsonian Migratory Bird Center: http://natzoo.si.edu/smbc/
Wild Birds Unlimited (FeederCam): http://www.wbu.com/feedercam_home.htm
Insects and Spiders
Impact of Insects on Human History: http://www.ento.vt.edu/ihs/distance/lectures/historical/historical_slide02.shtml
Insects, Disease and History: http://scarab.msu.montana.edu/historybug/
Monarch Watch: http://www.monarchwatch.org/
Myrmecology: The Scientific Study of Ants: http://www.myrmecology.org/
Spiders: http://www.ucmp.berkeley.edu/arthropoda/arachnida/araneae.html
Reptiles & Amphibians
Netfrog Title Page : http://curry.edschool.virginia.edu/go/frog
Virtual Fog Dissection Kit: http://www-itg.lbl.gov/ITG.hm.pg.docs/dissect/dissect.html
Mammals
Bat Thematic Unit:
http://intergate.cccoe.k12.ca.us/bats/
Human Anatomy On-line:
http://www.innerbody.com/htm/body.html
Human Genome: http://www.ncbi.nlm.nih.gov/genome/guide/
The Heart: An Online Exploration: http://www.fi.edu/biosci2/heart.html