“Crawzilla” was huge. Then scientists found an even bigger crayfish
A nationwide search for giant crayfish uncovered a record-breaking Tennessee specimen and a surprising mystery about how big these freshwater creatures can grow. Scientists found that North American crayfish seem to hit a biological size limit, possibly because of their muscles or protective shells.
Original source
This story is summarized for discovery. Read the full report at the original publisher.
Read original article ↗