Researchers plan to relocate mainland wolves to an island in Lake Superior in an effort to boost the near-extinct predator population and limit the growth of local moose herds.

A mass extinction event from an asteroid hitting Earth wiped out forests and, concurrently, tree-dwelling birds.  

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

Dryland biomes are covered in at least 40 percent more forest than previously estimated.