Dr. Ashley Martin: "A large ammonium reservoir would have been very beneficial for early life, providing the nitrogen source ...

However, the ancient royal city of Great Zimbabwe has been accorded the Unesco World Heritage Site status, making it one of the continent’s most significant archaeological sites. The stone city ...

and eventually developing into the more civilized races of the ancient ... assignments in the history of archeological preservation, the BSA appointed Hall Curator of Great Zimbabwe, with a ...

A study of ancient stromatolites reveals that ammonium reservoirs in early Earth's oceans, likely influenced by volcanic ...

While the site was occupied in ancient times—iron ... people who had no idea of its history. Despite decades of study, mysteries still cling to Great Zimbabwe like ivy. How did its residents ...