Environmental DNA Poses Scientific and Ethical Dilemmas

Environmental DNA (eDNA) comes from the traces of genetic material organisms shed as they go about their lives. Find out how our ability to analyze human eDNA samples is a mixed blessing for the fields of ecology and forensics.

Mother Tree Skeptics Call for More Study

The mother tree hypothesis suggests that trees form networks to share resources and communicate using fungi growing in their roots. Find out why a new study questions the evidence for this idea and calls for better experiments to uncover the truth.

Diet-size relationship - Animals arranged according to type of diet

Diet-Size Relationship in Animals Disturbed by Humans

The diet-size relationship is a universal principle in the animal kingdom that dates back millions of years. Find out how human activity is disturbing that principle's balance and the implications for species extinction.

Animal Movement - Elk Herd Crossing River

Animal Movement Disruptions Threaten Biodiversity

Animal movement changes are the result of human disruption of ecosystems. Discover why these changes pose a threat to species survival and to global biodiversity. (3:30 min read)