Once a live Christmas tree dries out, it stops behaving like a lush centerpiece and starts acting like kindling in the middle of your living room. The difference between a safe season and a ...

An all-hands-on-deck effort, tens of millions in funding and a breakthrough herbicide are slowing but not halting a destructive force steadily enveloping the best sagebrush left on Earth, including in ...

Halafian pottery shows that early agricultural societies practiced advanced mathematical thinking through plant-based art long before writing.