One is a protective sheath that keeps cells alive for months outside a host body, nourished by a layer of fat.

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What the researchers at Yale determined is that the trigger is actually related to the regulation of the layer of fat underneath the scalp.

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It was fascinating to see the images building up until we could see an actual photograph of the layer of fat under his skin and around his organs.

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The result was interesting, Unlike pork, the wild boar ribs had two distinct layers, sort of like pork belly, with a layer of meat and a layer of fat almost perfectly split horizontally.

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When hair dies, the layer of fat shrinks.

FORBES: Scientists Discover a Possible Key to Reversing Baldness

The researchers found that the rodents' preferences varied slightly between strains, as well as between sexes (with females partial to higher temperatures, possibly because of their thinner protective layer of fat), confirming that there is no single set of conditions in which all mice feel cosy.

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To get beyond Eggleston's Freudian couch, swine also need a 2-inch-thick layer of exterior fat along the belly and back.

WSJ: High on the Hog

The retinal nerve fiber layer is the one part of the brain where nerve cells are not covered with the fat and protein sheathing called myelin, making this assessment specific for nerve damage as opposed to brain MRI changes, which reflect an array of different types of tissue processes in the brain.

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The rillettes in a potted-duck appetizer were packed tightly into a small glass jar and sealed with a thick layer of creamy, peppered lard for spreading on toast triangles, while a mammoth pork chop, marbled with luscious fat, tasted of buttered popcorn.

NEWYORKER: Allswell