The Earth is now in the midst of its sixth major animal (and plant) extinction. The last mass extinction—approximately 65 million years ago—caused the disappearance of the dinosaurs. Although ...

The Earth is currently experiencing its sixth major extinction event. One million species globally are at risk of extinction in the next few decades, including 27 percent of the world’s mammals, 41 ...

Bull thistle, a member of the Asteraceae family, is yet another herbaceous biennial on our list of invasives. Unfortunately, bull thistle can flourish in an array of sites ranging from meadows, ...