People thrive all across the globe, at every temperature, altitude and landscape. How did human beings become so successful at adapting to whatever environment we wind up in? Human origins researchers like me are interested in how this quintessential human trait, adaptability, evolved.
While advances in medicine and nutrition in the last 200 years have added years to human lifespans, a new Leakey Foundation-supported study suggests there could be a more ancient explanation for why humans live longer than our closest relatives do.
A team of researchers, including Leakey Foundation grantees, discovered human and other animal footprints embedded on an ancient lake surface in the Nefud Desert in Saudi Arabia that are around 120,000 years old. These findings represent the earliest evidence for Homo sapiens on the Arabian Peninsula, and demonstrates the importance of Arabia for understanding human prehistory.
Strong social ties are a key driver of cooperation in many species and are associated with adaptive benefits in several of them, including humans, feral horses and dolphins. Although such bonds are widely observed, it is not always known why any two particular animals become friends (just as in humans).