Dr Sanz worked on the paper with Josep Call, also from the Max Planck Institute of Evolutionary Anthropology, and David Morgan from the Wildlife Conservation Society and Chicago's Lincoln Park Zoo.

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It's likely to be one of two options on the ballot paper, alongside what's nicknamed "devolution max" - full tax powers for Holyrood, with defence and foreign affairs staying under Westminster control.

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So it makes some sense on paper for Ford to attempt to get C-Max into the same consumer conversations as Prius, which still absolutely dominates purchases and consideration in the combined U.S. market for conventional hybrids, plug-ins and EVs.

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Max, tired of thinking in his brain, decided to think on paper, and so retrieved his journal from under the bed.

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