See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Sparse trees cast long shadows as the morning sun rises over the grassy ...

The Pliocene epoch, which lasted from 5.3 million to 2.6 million years ago, was a consequential time in Earth's history. The Isthmus of Panama formed, connecting North and South America, and the ...

Sparse trees cast long shadows as the morning sun rises over the grassy woodland clearing. Elephants and rhinos gather around a quiet watering hole. A troop of baboons starts chattering as they wake ...

Researchers have created a map of oceanic "dead zones" that existed during the Pliocene epoch, when the Earth's climate was two to three degrees warmer than it is now. The work could provide a glimpse ...