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Do bigger brains make smarter carnivores?

A bat-eared fox tries to open a puzzle box during an experiment to test intelligence.

A bat-eared fox tries to open a puzzle box during an experiment to test intelligence.

Credit: Sarah Benson-Amram, Greg Stricker and Kay Holekamp


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An arctic fox next to a box

An Arctic fox looks around before attempting to investigate what's in the box.

Credit: Sarah Benson-Amram, Greg Stricker and Kay Holekamp


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An arctic fox pawing at a box.

The Arctic fox decides to go for it, pawing at the box.

Credit: Sarah Benson-Amram, Greg Stricker and Kay Holekamp


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A leopard looking at a box

Next it's the leopard's turn. It, too, takes its turn at the puzzle box.

Credit: Sarah Benson-Amram, Greg Stricker and Kay Holekamp


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An Amur tiger swiping at a box.

An Amur tiger swipes at the puzzle box.

Credit: Sarah Benson-Amram, Greg Stricker and Kay Holekamp


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A snow leopard tries to open a box

Then the snow leopard tries.

Credit: Sarah Benson-Amram, Greg Stricker and Kay Holekamp


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