One day in 1950, the great Italian physicist Enrico Fermi was walking to lunch with some scientist friends. The talk turned to life elsewhere in the universe. Surely, someone remarked, there must be ...

LOMA, Colo. — Water is a driving force in the American West, and today it’s at risk more than ever. Not just from overuse, not just from megadrought, but from minuscule invaders that pose a nearly ...

Invasive animals outcompete or eat insects while invasive vegetation replaces native plants that insects feed upon. The study ...

Keeping non-native reptiles as pets is against the law – with good reason. Alien species traded on the black market can potentially establish themselves in the wild if they are released or escape.

The fight against invasive tree species is intensifying at the Melville Koppies, particularly with the alarming rise of the bugweed tree (solanum mauritianum). This category 1 invader is wreaking ...

Insects are often seen as invaders due to high-profile species like the yellow-legged (Asian) hornet, the harlequin ladybird ...