Dolphins and shearwaters hunting

Dolphins and shearwaters hunting

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This image is part of the feature Baitball Frenzy

Credit: CHRISTOPHER SWANN/SCIENCE PHOTO LIBRARY

Caption: Short-beaked common dolphins (Delphinus delphis) and Cory's sheerwaters (Calonectris diomedea) hunting blue jack mackerel (Trachurus picturatus). The mackerel have formed a bait ball, a defensive manoeuvre performed by schooling fish that makes it harder for the predators to pick out individuals. However, it can also draw the attention of other predators, some of which have learnt how to take advantage of the bait ball. Photographed in the Azores.

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Keywords: animal, animal behaviour, atlantic ocean, azores, bait ball, baitball, balled, biological, biology, bird, blue jack mackerel, calonectris diomedea, cetacean, co-operation, cooperate, cooperation, corral, cory's sheerwater, corys, defence, defending, defense, defensive, delphinus delphis, dolphins, evasion, evasive, fauna, feeding, fish, formation, hunting, mammal, many, marine biology, mixed species feeding, multiple, nature, pod, predation, predator, prey, preying, school, schooling, sea, seabird, shearwaters, shoal, shoaling, short-beaked common dolphin, spherical, strategy, trachurus picturatus, under water, underwater, wildlife, zoological, zoology

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