The population drop opened the door for outsiders to repopulate with new demographics and cultures.

Studying human evolution involves piecing together scattered clues about how we survived against tough odds. One of the biggest mysteries is understanding how large or small ancient human populations ...

(Mait Juriado photo/Moment/Getty Images) The human population has already grown too large and demanding for Earth to sustainably support at current consumption levels, a new study warns. Based on more ...

There are records of whole human groups disappearing mysteriously from parts of northwest Europe, particularly what is now ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: While most estimates place the current human ...

Across North America, mountain lions, bears and gray wolves have made a remarkable comeback over the last 50 years. Once nearly exterminated, these animals have been recovering their populations and ...

Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." “We were surprised to find that the actual population living in rural areas is much higher than the ...