Up Just One Creek

A rare Colorado trout may be even more elusive than previously thought, reports The New York Times' Green blog. The greenback cutthroat trout, which is the state fish of Colorado, was thought to live in five wild populations, but a recent study of current fish populations, preserved samples, and historical stocking records indicates that there is only one wild population of the trout, the Times says.

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A fire at a Manchester hospital may have destroyed lab equipment and data, the Guardian reports.

Researchers generate a genetic database from skeletal remains from the 1845 Franklin Expedition to the Arctic, Live Science reports.

Researchers in China have begun another trial using CRISPR/Cas9 approaches in cancer patients, according to the Wall Street Journal.

In Science this week: human DNA found in sediments from archeological sites lacking bones, and more.