From Australian Museum Online comes this informative presentation on biodiversity. This searchable site allows visitors to learn fun biodiversity facts (such as the evolutionary history of the platypus and the secret...

This site contains lecture notes regarding avian reproduction from Dr. Gary Ritchison's Ornithology course at Eastern Kentucky University. The lecture notes are interspersed with some especially nice images and diagrams...

The American Veterinary Medical Association (AVMA) has assembled an impressive array of materials for K-12 educators on this informative site. Here readers will find resources divided into three age-based categories,...

This description of the fossil record of bacteria focuses on one particular group of bacteria, the cyanobacteria or blue-green algae, which have left a fossil record that extends far back into the Precambrian. The oldest...

The Bailey-Matthews Shell Museum features more than 30 exhibits of mollusks from around the world. Exhibits are devoted to shells in art and history, shell habitat, rare specimens, fossil shells, common Southwest Florida...