"Invasive species are a serious challenge for our parks and connected ecosystems,” the National Park Service website states.

PORTLAND, Ore. (PORTLAND TRIBUNE) — The battle against invasive beetles has gained two new champions. The Oregon Department of Forestry hired two support specialists to aid communities in ...

To protect themselves from being eaten by predators, some species have evolved clever defence mechanisms. Bombardier beetles have turned to chemical warfare, with some taking the art of escape to an ...