Imagine an asteroid striking Earth and wiping out most of the human population. Even if some lucky people survived the impact ...

The persistent presence of humans and their infrastructure in U.S. national parks has yielded dramatic changes in the behaviors of large animals who live there, a new study has found. Even during the ...

Add Yahoo as a preferred source to see more of our stories on Google. Guest Opinion. Altruism is helping without a benefit and sometimes at a risk to one’s self. Animals helping others of their own ...

Destroying forests, draining wetlands, and reshaping land can increase disease risk by changing how people and wildlife ...