San Diego Zoo Global
San Diego Zoo: Turtle and Tortoise
This resource provides detailed information about turtles and tortoises, as well as several pictures and an audio clip.
CK-12 Foundation
Ck 12: Life Science: Turtles
[Free Registration/Login may be required to access all resource tools.] Turtles are reptiles in the order Testudines. Most turtle bodies are covered by a special shell developed from their ribs. About 300 species are alive today, and...