Horseshoe crabs are one of the strangest critters ever; they are ancient animals who have been on earth for 450 million years and have scarcely changed in all that time.

Field Notes: Horseshoe crabs and health care

On the second Tuesday of every month, we hear from our contributors in the field. Susan Knight and Gretchen Gerrish both work for the University of Wisconsin-Madison’s Center for Limnology at Trout Lake Station. Scott Bowe is the Director of Kemp Natural Resources Station.

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Field Notes: Horseshoe crabs and health care

Field Notes: Horseshoe crabs and health care

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