O the sirens of Florida, the graceful behemoths that lie like gray logs just under the surface of the water. We recently examined manatees up close at the Tampa Zoo, where those under repair and rest after injury from boat propellers and other human hazards, chomp down barrels-full of lettuces. They and their gizzard-possessing fish friends, the local leaping mullet, are vegetarians of reknown.
From manatees.net--"Manatees eat over 60 different species of aquatic and semi-aquatic plants. Their diet includes manatee grass, turtle grass, various species of algae, mangrove leaves, and water hyacinths. They may consume 10% of their body weight daily in vegetation. Their digestive system allows the bacterial breakdown of cellulose in the hind-gut. To accommodate the great volume of high-fiber food they eat, manatatees have intestines up to 150 feet long."
