About 709,000 years ago, someone butchered a rhinoceros using stone tools on the Philippine island of Luzon. That may not seem remarkable -- except that humans weren't supposed to be in the Philippines so long ago. Before this discovery, the earliest indicator that early humans, or hominins, were even on those islands had been a single foot bone from 67,000 years ago, uncovered in the Callao Cave on Luzon. That's quite a time jump. Research says that the new findings push back the date for humans inhabiting the Philippines by hundreds of thousands of years. A study published Wednesday in...
