Doug Perrine / Bryde's whale {Balaenoptera brydei / edeni} with throat pleats expanded after feeding on baitball of Sardines {Sardinops sagax} off Baja California, Mexico, Eastern Pacific Ocean. Veolia Environnement...

Franco Banfi / Striped marlin (Kajikia audax) hunting Sardine (Sardinops sagax) in bait ball. Magdalena Bay, Baja California Sur, Mexico.

Franco Banfi / Striped marlin (Tetrapturus audax) feeding on Sardine (Sardinops sagax). Magdalena Bay, Baja California Sur, Pacific Ocean, Mexico.

Ingo Arndt / Shoal of Pacific / South african sardines (Sardinops sagax) Monterey Bay Aquarium, USA

Chris & Monique Fallows / Common dolphin (Dephinus delphis) feeding on sardines (Sardinops oecllata) East London, South Africa.

Chris & Monique Fallows / Common dolphin (Dephinus delphis) pod feeding on sardines (Sardinops oecllata) East London, South Africa.

Chris & Monique Fallows / Common dolphin (Dephinus delphis) pod feeding on sardines (Sardinops oecllata) East London, South Africa.

Chris & Monique Fallows / Blacktip shark (Carcharhinus limbatus) feeding on sardines (Sardinops ocellatus ) East London, South Africa

Pete Oxford / Long-beaked Common Dolphin (Delphinus capensis) pod and diving Cape Gannets (Morus capensis) hunting Pacific Sardines (Sardinops sagax), Eastern Cape, South Africa

Doug Perrine / Bryde's whale (Balaenoptera brydei / edeni) expelling air and water from mouth through baleen plates after engulfing part of a baitball of Sardines, Sardinops sagax, off Baja California, Mexico (Easte...

Doug Perrine / Bryde's whale (Balaenoptera brydei / edeni) feeding on baitball of Sardines (Sardinops sagax) off Baja California, Mexico, Eastern Pacific Ocean. 4 in sequence of 5

Doug Perrine / Bryde's whale (Balaenoptera brydei / edeni) feeding on baitball of Sardines (Sardinops sagax) off Baja California, Mexico, Eastern Pacific Ocean. 3 in sequence of 5