The Florida Manatee, is already an endangered species due to human impact and habitat loss but one of the main contributing factors is cold water which leads to these animals to get sick. So far this year more than 100 manatees have been found dead in Florida waters and according to the Florida Fish and Wildlife Conservation Commission, the cause of death for 77 of the endangered animals is cold stress.

The state has had unseasonably cold weather this month that has killed fish and stunned thousands of sea turtles. Officials say the numbers of dead manatees from the cold is a record for a single year. The previous record, set last year, was 56 deaths from cold stress.

“Researchers continue to recover and examine carcasses, so the total is expected to rise; however, the rate should slow down as water temperatures warm,” the commission said in a statement.