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 ...

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 ...

Thousands of years ago, survival was a shared agreement between humans and animals. We offered shelter, food, and protection. In return, animals offered strength, companionship, labor, or food.

If humans can grow meat in labs, we could feed wild predators and reduce predation in nature.