Two studies have determined that low-density bones evolved relatively recently in modern humans, with bone density decreasing in the past 12,000 years or so. This marked the change in modern humans, shifting from foraging to agriculture and becoming...
Matthew Carrigan at Santa Fe College in Gainesville, Florida, and his co-workers have discovered that ancient apes were able to metabolise ethanol. They acquired this ability around 10 million years ago, which coincides with when they came down from...