This Week in Science

In Science this week, researchers compare the genomes of two types of crows — the all-black carrion crow and the gray-coated hooded crow — and find that a very small percentage of the birds' genes are responsible for their different looks. The team compared the genomes of 60 crows from the areas in Europe where their ranges overlap and found that varied expression of less than 0.28 percent of the entire genome was enough to maintain different coloration between the two species.

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Researchers have sequenced the northern white rhinoceros to gauge whether it could be brought back from the edge of extinction, the New York Times reports.

Bavaria expands its forensic genetic analyses to include DNA phenotyping, raising discrimination concerns.

Tufts University researchers found a role for miRNA in transmitting stress between generations, the Economist reports.

In Science this week: gut microbiome influences liver cancer growth, spread; and more.