May+10

Introduction to crayfish behavior: http://www.safeshare.tv/v/zDMYKi2XASg

How to determine the gender of your crayfish? http://www.safeshare.tv/v/EChAPJlqZpg

http://faculty.orangecoastcollege.edu/mperkins/zoo-review/crayfish/crayfish2.html

Internal Anatomy http://www.infovisual.info/02/025_en.html

crayfish anatomy gender