Interactive Activities
Kids' Planet Animal Facts
National Geographic Kids
Extinction Status
Blue Planet Biomes
San Diego Zoo Kids
Animal Articles, Quizzes, and Facts
World Wild Life: Species
Plant and Animal Biomes
How to Draw Animals
Wikipedia - Crayfish
Enchanted Learning- Crayfish
Crayfish online book
Know Your Invasives: Rusty Crayfish
Hook n' Look Splash #19 - Rusty Crayfish
Marbled Crayfish Egg Development