University of Guelph
Discover Canada's Aquatic Reptiles
Site provides users with information regarding the different aspects of reptiles inhabiting Canada. Offers links to references, snakes and lizards, turtles and reptile families.
Other
Melissa Kaplan: Reptile Skin Basis
A good introduction to the skin of reptiles. Describes some of the general characteristics of the scales. Information on various diseases is included. Also links to many related articles are listed.
Science Education Resource Center at Carleton College
Serc: Investigating Classification: Minnesota Vertebrates
This lesson serves as an introduction to classification. The students will place animals into its proper vertebrate group according to certain characteristics that the animals have in common.