Researchers have been able to isolate DNA from the footprints polar bears leave behind in the snow, Reuters reports.

Typically, researchers track rare animals like polar bears, snow leopards, and orangutans and collect DNA from sources like hair or feces left in their wake. These DNA samples allow the investigators, Reuters notes, to study the animal's population size and movements, as well as develop conservation strategies.

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York University researchers find genomic evidence of inbreeding in the yellow-banded bumblebee, according to Reuters.

In its survey of US adults, the Pew Research Center finds that views on the genetic engineering of animals depend on why it's done.

The Scientist reports agricultural researchers are working on a gene-stacking tool.

In Nature this week: statistical method for overcoming case-control imbalance issues, and more.