But Hazara farmers in Behsood say that the Kuchis' own animals are stripping grasses that the locals need to cut and dry to keep their sheep and goats alive during harsh highland winters.

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In the centre of Tafraoute, sheep make their way up a dry stream bed.

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Named Blanket Bay (after the blankets used by sheep shearers here in the 19th century to keep wool dry), the resort is the type of luxe but rough-hewn lodge one might expect to find in the Adirondacks or at Lake Tahoe.

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The archaeologists put the shoe's remarkable preservation down to the stable, cool and dry conditions in the cave and the fact that the floor of the cave was covered by a thick layer of sheep dung.

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