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.

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

Pascal Kobeh / Two Bluestriped / Boar grunts (Haemulon sciurus) and a Schoolmaster / Dogtooth snapper (Lutjanus apodus) in front of a Sea rod (Plexaura / Eunicea ), San Salvador Island / Colombus Island, Bahamas. Ca...

Pascal Kobeh / Bluestriped / boar grunt (Haemulon sciurus) and Schoolmaster / Dogtooth snapper (Lutjanus apodus) in front of a sea rod / gorgonian (Plexaura / Eunicea ), San Salvador Island / Colombus Island, Bahama...

Alex Mustard / Schoolmaster snapper (Lutjanus apodus) portrait, Grand Cayman, Cayman Islands, Caribbean Sea.

Franco Banfi / Schoolmaster snapper (Lutjanus apodus) shoal swimming through a shoal of Sardines (Sardina sp.), Espiritu Santo Island, Baja California, Mexico, Sea of Cortez.

Franco Banfi / Schoolmaster snapper (Lutjanus apodus) shoal swimming beneath a shoal of Sardines (Sardina sp.), Espiritu Santo Island, Baja California, Mexico, Sea of Cortez.

Pascal Kobeh / Schoolmasters or Dogtooth snappers (Lutjanus apodus) on the reef, The Gardens of the Queen, Cuba, Caribbean Sea.

Claudio Contreras / Schoolmaster snapper (Lutjanus apodus), Banco Chinchorro Biosphere Reserve, Caribbean region, Mexico, May

Alex Mustard / Mixed school of Bluestriped grunts (Haemulon sciurus), French grunts (Haemulon flavolineatum) and Schoolmasters ( Lutjanus apodus) shelter in Elkhorn corals (Acropora palmata) growing in shallow water...

Shane Gross / Schoolmaster snapper (Lutjanus apodus) amongst Red mangrove (Rhizophora mangle), Turtlegrass (Thalassia testudinum) in foreground. Eleuthera Island, Bahamas.

Shane Gross / Schoolmaster snapper (Lutjanus apodus) swimming amongst Red mangrove (Rhizophora mangle), Turtlegrass (thalassia testudinum) in foreground. Eleuthera Island, Bahamas.

Alex Mustard / Sunbeams play through the roots of red mangrove trees (Rhizophora sp.), encrusted with marine life and home to schoolmaster snappers (Lutjanus apodus). Jardines de la Reina, Gardens of the Queen Natio...

Claudio Contreras / Schoolmaster snapper (Lutjanus apodus) and Bluestriped grunt (Haemulon sciurus) seeking protection in Elkhorn Coral (Acropora palmata), Jardines de la Reina / Gardens of the Queen National Park, Carib...

Claudio Contreras / Schoolmaster snapper (Lutjanus apodus) and Bluestriped grunt (Haemulon sciurus) amongst Red mangrove (Rhizophora mangle), Jardines de la Reina / Gardens of the Queen National Park, Caribbean Sea, Cieg...