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by _5659 1955 days ago
One of my early childhood memories was crayfishing. You can pretty much put anything on a string and these things will bite onto it. They are not picky. It's not even really fishing, it's almost as easy as just grabbing them from the water. It's a fun activity for kids because it doesn't require any skill to get good at.

They are an indicator species. They are not known for tolerating polluted bodies of water and quickly die if the water becomes toxic.