Shane Gross / Caribbean reef shark (Carcharhinus perezi) swimming over Manatee grass (Syringodium filiforme). Nassau, Bahamas.

Shane Gross / Manatee (Trichechus manatus latirostrus) feeding on turtle grass (Thalassia testudinum) and manatee grass (Syringodium filiforme) in the shallows of Eleuthera, Bahamas.

Doug Perrine / Florida manatee feeding on turtle grass {Trichechus manatus latirostris} Florida, USA,

David Hall / West Indian manatee (Trichechus manatus) dappled in sunlight, grazing on Hydrilla (Hydrilla verticillata), a highly invasive fresh water plant originally from Asia, Crystal River, Florida, USA.

Shane Gross / Southern stingray (Dasyatis americana) feeding in a seagrass (Syringodium filiforme) meadow near a coral reef, Bahamas.

Alex Mustard / Manatee grass (Syringodium filiforme) grows on sand in shallow water. Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.