Jordi Chias / Schoolmaster snapper (Lutjanus apodus) school in the reef, Little Cayman island, Cayman Islands, Caribbean.

Shane Gross / Schoolmaster snapper (Lutjanus apodus) shoal sheltering amongst Red mangrove (Rhizophora mangle) roots. Caribbean Sea off Gardens of the Queen National Park, Cuba.

Shane Gross / Caribbean reef shark (Carcharhinus perezi) patrolling coral reef with Schoolmaster snapper (Lutjanus apodus) and other fish. Caribbean Sea off Gardens of the Queen National Park, Cuba.

Shane Gross / Schoolmaster snapper (Lutjanus apodus) in red mangrove(Rhizophora mangle) and turtlegrass (thalassia testudinum) habitats, Eleuthera Island, Bahamas.

Alex Mustard / Schoolmaster snapper (Lutjanus apodus) on coral reef. East End, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

Linda Pitkin / Schoolmaster snapper (Lutjanus apodus) on coral reef Bonaire, Leeward Antilles, Caribbean.

Linda Pitkin / Schoolmaster snapper (Lutjanus apodus) on coral reef Bonaire, Leeward Antilles, Caribbean.

Claudio Contreras / Elkhorn coral (Acropora palmata) French Grunt (Haemulon flavolineatum) and Schoolmaster Snapper (Lutjanus apodus), Jardines de la Reina / Gardens of the Queen National Park, Caribbean Sea, Ciego de Av...

Alex Mustard / Schoolmaster snapper (Lutjanus apodus) hunts silversides (Atherinidae) inside a coral cavern. George Town, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

Pete Oxford / Schoolmaster fish (Lutjanus apodus) Halfmoon Caye, Lighthouse Reef Atoll, Belize.

Georgette Douwma / Schoolmaster fish (Lutjanus apodus) with soft corals. Bonaire, Netherlands Antilles, Caribbean, Atlantic Ocean.

Georgette Douwma / Schoolmaster fish (Lutjanus apodus) Bonaire, Netherlands Antilles, Caribbean, Atlantic Ocean.