Archaeological excavations at the Acheulean site of Saffaqah near Dawadmi in central Saudi Arabia have found that Homo erectus, an extinct hominid species that lived between 1.9 million and 143,000 years ago, used ‘least-effort strategies’ for tool making and collecting resources. This is an artist’s reconstruction of Homo erectus. Image credit: Yale University. “This ‘laziness’ paired with an inability to adapt to a changing climate...
