Middle School Science
Crayfish Dissection
In this lab experiment site, you will "Observe the external and internal anatomy of a crayfish, determine the sex of a crayfish using external anatomy, and collect statistical data on crayfish length and cheliped length."
Unique Australian Animals
Unique Australian Animals: Yabby
The Yabby is an Australian freshwater crayfish. Read the description at this website to learn more.