LAKE TAHOE, Calif. – Every organism leaves traces of its genetic identity behind—tiny fragments of DNA shed into water, soil, and air. Scientists can now collect and analyze these genetic clues, known as environmental […]
LAKE TAHOE, Calif. – Every organism leaves traces of its genetic identity behind—tiny fragments of DNA shed into water, soil, and air. Scientists can now collect and analyze these genetic clues, known as environmental […]