Water flows between a dead-looking stump and nearby trees on an alternating schedule.

Silver birch, elder, and yew win out in an experiment to see which species best capture the tiny particles from diesel pollution.

In the last year, the butterfly’s eastern group has more than doubled its hibernation area while the other population waned. Plus, researchers are moving trees to save monarch habitat.

Numerous studies link habitat destruction to malaria and other vector-borne diseases, but the relationship isn’t always clear.

Scientists suspect the rapidly spreading beech leaf disease is due to an unidentified microbe.

A higher species richness could boost plant communities’ ability to mitigate climate change, a study suggests.

A new study ignites debate on the cause of pistachio bushy top syndrome, a disease that has crippled farms in California, Arizona, and New Mexico.

Although more evidence is needed to pin down a cause, researchers suspect that climate change is to blame.

Ancient fossils reveal how woodless trees got so big: by continuously ripping apart their xylem and knitting it back together.