Wildlife researchers in South Carolina want to know where horseshoe crabs go when the mood strikes them.
  
The Department of Natural Resources is asking anyone who sees mating horseshoe crabs to let them know where they end up together at a link on the agency’s Facebook page.
  
Researchers told The Post and Courier of Charleston they are trying to determine if horseshoe crabs prefer the beach or marsh or creeks.
  
Horseshoe crabs spawn during new moons in the spring and early summer, with the male grabbing the female and riding shore together during high tide.
  
Scientists say horseshoe crabs are important food for threatened species of birds and seas turtles and their blood is a critical component to help test the sterility of medical supplies.