A garden invader is Purslane. This “weed” is a low growing succulent with a red stem, green tear drops shaped leaves and small yellow flowers. Since it’s invasive, it spreads out like a small rug.

This time of year, many trees, shrubs and flowers show signs of abuse and neglect. Hail, strong winds, drought and insects tatter leaves and shred stems. However, the maltreatment does not end there.

Powerful winds can topple trees and tear up shrubs in the forest, and this can create an opening for invaders—plants that don’t belong there. To learn more about this post-storm phenomenon, scientists ...

When a plant or animal species is introduced to a new environment with few natural predators, it can spread uncontrollably, transforming the ecosystem and crowding out existing populations. One ...

One of the state's best investigators was on the hunt for golden mussels -- a dangerous new invader in California's waters, with a reputation for destruction. Wearing a collar and a tongue-lolling ...

Study finds microbes can alter an environment dramatically before dying out. When a plant or animal species is introduced to a new environment with few natural predators, it can spread uncontrollably, ...