A few species, for example the Mediterranean parrotfish (S. cretense), are secondary gonochorist, meaning some females do not change sex, and the ones that do, change from female to male while still immature (i.e., reproductively functioning females do not change to males).
R. B. Winter State Park. R. B. Winter State Park (also known as Raymond B. Winter State Park) is a Pennsylvania state park on 695 acres (281 ha) in Hartley Township, Union County, Pennsylvania in the United States. It is in the ridge and valley region of Pennsylvania and is surrounded by Bald Eagle State Forest.
Winter was found in the coastal waters of Florida in December 2005, caught in a crab trap, which resulted in the loss of her tail. She was then taken to Clearwater Marine Aquarium. The loss of her tail caused her to swim unnaturally with her tail moving side to side instead of up and down.