Facts about crayfish

Few things you didn’t know about crayfish 1. Crayfish have blue blood. 2. Crayfish do not walk backwards, however they can swim backwards by flapping their tail. 3.The male crayfish has two extra legs under his belly. 4. Signal crayfish have a pale patch near the claw hinge. 5. Crayfish breathe with gills, just like fish. 6. Crayfish are cannibals and eat each other. 7. Crayfish must be at least 9 cm. 8. Crayfish is […]