Other
Ornithology: Metabolism and Thermoregulation
A good site that discusses the rate at which a bird's metabolism functions and its effect on the body temperature of the animal.
Other
American Academy of Allergy, Asthma and Immunology
This resource describes an organization that is involved in studies and treatments of allergies. Research and education are also important parts of this organization.
PBS
Pbs Teachers:a Model of Seed Dispersal
Investigate propagation systems in plants, and explain the ways some animals disperse seeds through their digestive processes. Role-play and map the daily travels of one seed-bearing animal to explore the migration of seeds.