Revealing the secrets of freshwater streams

Beneath the surface of a freshwater stream, animals, plants, fungi, and microorganisms create complex patterns of biodiversity. Brooke Penaluna, research fisheries biologist at the USDA Forest Service Pacific Northwest Research ...

The age of blood stains says more about the crime

The composition of blood stains changes over the course of weeks and months. Forensic medicine hopes to make use of this fact in future to convict suspects—or to prove their innocence.

Rocks beneath Antarctic Ice Sheet reveal surprising past

The West Antarctic Ice Sheet is shrinking, with many glaciers across the region retreating and melting at an alarming rate. However, this was not always the case according to new research published last month (April 28) in ...

Early toilets reveal dysentery in Old Testament Jerusalem

A new analysis of ancient feces taken from two Jerusalem latrines dating back to the biblical Kingdom of Judah has uncovered traces of a single-celled microorganism Giardia duodenalis—a common cause of debilitating diarrhea ...

page 39 from 40