How did the world's first great settlements mysteriously collapse?
Whether intentional or not, the way large settlements were built in southeastern Europe 6,000 years ago may have limited the spread of disease.The Tasmanian tiger dies
The Tasmanian tiger (Thylacinus cynocephalus), the size of a dog, the size of a dog living in mainland Australia and Tasmania, was hunted to extinction in the early 1900s. The last