The number of manatees in the waters around Florida have reached a new peak of at least 6,250, conservationists said Thursday, a record reflecting years of efforts to protect the marine mammals. The count is up slightly from the 6,063 spotted last year, the Florida Fish and Wildlife Conservation Commission said in a statement, citing results from surveys conducted by 11 organizations. Last month, the US Fish and Wildlife Service proposed downgrading the manatee's status from endangered, a designation given to species on the brink of extinction, to threatened. ...