Florida manatee, Trichechus manatus latirostris, a subspecies of the West Indian manatee, endangered. Series of a mature adult male manatee with scars resting and warming himself over a large springhead. An adult male manatee floats with flippers together in perfect buoyancy over a large spring. Tranquil warm blue freshwater and rainbow sun rays enhance the peaceful scene  Horizontal orientation with blue water and rainbow sun rays. Three Sisters Springs, Crystal River National Wildlife Refuge, Kings Bay, Crystal River, Citrus County, Florida USA.