Fragments of a partial skull unearthed in a cave in northern Spain have revealed a previously unknown population of ancient ...

New fossil evidence from a Spanish cave suggests an unknown prehistoric human population once lived in Europe.

As nations mark World Wildlife Day, conservationists in Kenya are warning of shrinking wildlife spaces in a country that ...

An extensive, decades-long analysis tracking endangered caribou populations has revealed that migration patterns are eroding.

Rising temperatures were the dominant force helping rat populations grow, but they weren't the only factor, the study found.

Farming arose on multiple continents among populations with radically different cultures and environments and with no means ...

Neanderthal fossils show a major population drop 110,000 years ago. Researchers link this to reduced genetic diversity.

From a groundbreaking find to a global disaster. This is how one species and human error endangered amphibians everywhere.

In efforts to prevent even broader spread, public health officials in Texas, New Mexico and Oklahoma are working around the ...

This month, North Dakota Health and Human Services (HHS) is raising awareness about colorectal cancer. In the U.S., cases of ...

Even Arizonans who aren't on Medicaid benefit from it, said Sen. Ruben Gallego, who is trying to get the word out before Congress cuts funding.