Michael Pitts / Longspine squirrelfish {Holocentrus rufus} on the wreck of the SS Rhone, British Virgin Is, Caribbean.

Flip Nicklin / Squirrelfish (Holocentrus sp) schooling at reef, Cocos Island, Costa Rica

Flip Nicklin / Squirrelfish (Holocentrus sp) schooling at reef, Cocos Island, Costa Rica

Graham Eaton / Squirrelfish (Holocentrus adscensionis) swimming over hard coral in a reef. Playa del Carmen, Mexico.

Claudio Contreras / Longspine Squirrelfish (Holocentrus rufus). Cancun National Park, Caribbean Sea, Mexico.

Pete Oxford / Longspine Squirrelfish (Holocentrus rufus). Xcalac Marine Reserve, South Yucatan Peninsula, Mexico.

Mark Moffett / Students picking lettuce to prepare salad under direction of Michelle Obama and White House chef Sam Kassat, White House, Washington D.C.

Mark Moffett / President Obama's personal chef Sam Kass in Michelle Obama's vegetable garden, White House, Washington D.C.

Norbert Wu / Common Squirrelfish (Holocentrus adscensionis) Pennant Bannerfish (Heniochus chrysostomus) and Emperor Angelfish (Pomacanthus imperator) near soft coral ledge, Raja Ampat Islands, Indonesia

Chris Newbert / Sea Fan (Melithaea sp) and Squirrelfish (Sargocentron) 60 feet deep, Solomon Islands

Michael Pitts / Longspine squirrelfish {Holocentrus rufus} on the wreck of the SS Rhone, British Virgin Is, Caribbean.

Flip Nicklin / Squirrelfish (Holocentrus sp) portrait, Cocos Island, Costa Rica