As the war in Iran enters its fourth week, the costs are adding up. NPR's Ayesha Rascoe talks to Doug Weir, with the Conflict and War Observatory, about impacts to human health and the environment.

All organisms in an ecosystem are interconnected, and any imbalance in this complex relationship can have irreversible consequences for both humans and nonhumans. Numerous examples illustrate how the ...

Introduction : Understanding the greater Serengeti ecosystem / Craig Packer and Stephen Polasky -- Historical and future changes to the Serengeti ecosystem / A.R.E. Sinclair ... [et al.] -- ...

Some invasive plants can form persistent banks of seeds that remain under the soil for years, and this makes their eradication practically impossible. Over time, this invisible population of large ...

Can humans endure long-term living in deep space? The answer is a lukewarm maybe, according to a new theory describing the complexity of maintaining gravity and oxygen, obtaining water, developing ...

Add Yahoo as a preferred source to see more of our stories on Google. Pollution from human waste is putting pressure on Jacksonville’s waterways and threatening the survival of manatees across the ...

Anybody who has seen me walking with a cane knows that I'm not exactly a spring chicken. Some might joke that my social life is an example of carbon dating. As an aging example of Homo sapiens, I'd ...