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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Two researchers have found that behavioral genetic defenses in criminal cases don't tend to affect outcomes, according to Popular Science.

Researchers report that while host genetics influence the oral microbiome, they don't appear to affect cavity-causing microbes, the Economist says.

Pandas' gut microbiomes change as what they eat changes with the seasons, writes Discover's Inkfish blog.

In PLOS this week: comparative genomic study of malaria-linked macaque parasite, search for apple root reference genes, and more.