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People took turns on bullhorns to urge calm and to unite.

All the subjects took turns in an MRI machine, where the researchers induced auditory hallucinations with classical conditioning, following the example of Pavlov and his dogs.

Between shifts the sailors took turns to foster, hand-feed, and rear the little cats while searching for a new permanent home for them.

People took turns scanning their eyes by peering into white devices known as orbs — to prove they are human.

They don't need to: the pups will happily take turns being nursed from the same mammary gland, and this devoted and well-cared-for mother spends plenty of time with each of her many, many beloved children.