I had just finished my safety talk to some middle school students when I heard a bloodcurdling scream. In many years handling aquatic insects and other small water creatures, I have never been wounded. Crayfish have once or twice gotten hold of me but never drawn blood. So I was quite surprised to hear through the minor chaos that a student had actually been bitten.
There were no crayfish where we sampled in Winooski, Vermont floodplain ponds and only one likely candidate to produce such a scream. It was the reason I had specifically warned my students to use forceps. » Continue Reading.