Doug Perrine / Baitball of Sardines / Pilchards (Sardinops sagax) during the annual Sardine Run off the east coast of South Africa at Mboyti, Transkei or Wild Coast (Indian Ocean) with Bottlenose dolphin (Tursiops t...

Doug Perrine / Copper sharks / Bronze whaler (Carcharhinus brachyurus) and Little eastern tuna {Euthynnus affinis} feeding on a baitball of Sardines / Pilchards (Sardinops sagax) during the annual Sardine Run off t...

Doug Perrine / Copper shark / Bronze whaler (Carcharhinus brachyurus) feeding on a baitball of Sardines / Pilchards (Sardinops sagax) during the annual Sardine Run off the east coast of South Africa at Mboyti, Trans...

Doug Perrine / Copper sharks / Bronze whaler (Carcharhinus brachyurus) feeding on a baitball of Sardines / Pilchards (Sardinops sagax) during the annual Sardine Run off the east coast of South Africa at Mboyti, Tran...

Doug Perrine / Striped marlin {Tetrapturus audax} feeding on baitball of Sardines {Sardinops sagax} off Baja California, Mexico

Doug Perrine / Striped marlin {Tetrapturus audax} feeding on baitball of Sardines {Sardinops sagax} off Baja California, Mexico #4 in sequence of 7

Doug Perrine / Common dolphins (Delphinus delphis) preying on "baitball" of sardines (Sardinops sagax), South Africa.

Doug Perrine / Common dolphins (Delphinus delphis) preying on "baitball" of sardines (Sardinops sagax), South Africa

Doug Perrine / Copper sharks / bronze whaler {Carchahinus brachyurus} preying on Sardine baitball {Sardinops sagax} South Africa.

Doug Perrine / Copper sharks / bronze whaler {Carchahinus brachyurus} and South African fur seal {Arctocephalus pusillus pusillus} preying on sardine baitball {Sardinops sagax} South Africa.

Franco Banfi / Sardine (Sardinops sagax) bait ball. Magdalena Bay, Baja California Sur, Mexico.

Franco Banfi / California sealion (Zalophus californianus) and Striped marlin (Tetrapturus audax) feeding on Sardine (Sardinops sagax) bait ball. Magdalena Bay, Baja California, Mexico.