Last week a group of baboons escaped from a fenced testing facility. They were all male, four in number and were living — apparently unhappily — with a large group of other males. Sealed barrels were placed in the enclosure for the baboons’ entertainment, but this quartet found another use for the barrels.

They worked together as a team to roll a barrel against the fence, then stood it on its end, climbed up and escaped over the fence.

Once over, three continued on their journey to freedom, but one

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