This Week in Nature

In Nature this week, a team from Uppsala University presents genetic data suggesting that tooth enamel may have originated in fish. While enamel is unique to vertebrates, fossils and certain primitive species of fish alive today have an enamel-like tissue called ganoine on their scales.

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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.