Atlantic horseshoe crabs. Courtesy of Breese Greg, USFWS Mid-Coast Audubon and Camden Public Library will host a free online Zoom presentation on the ecology of horseshoe crabs in the Great Salt Bay on Thursday, April 15 at 6 p.m. To register for the event, please email Julia Pierce (jpierce@librarycamden.org) to request the Zoom login information. The Great Salt Bay in Damariscotta hosts one of the best breeding locations for horseshoe crabs (Limulus polyphemus) in the state of Maine. Since 2003, taking and possession of horseshoe crabs has been prohibited in the state due to their small populations. The presenter, Sarah Gladu, will illuminate these fascinating ancient animals, their habits, their conservation status in Maine, and their importance to the overall health of our estuarine environment.