These two ancient skulls discovered in China appear to be hybrids of humans, neanderthals and a third mysterious race

Two 100,000-year-old skulls unearthed in China are up-ending ideas about human evolution. They appear to be hybrids of humans, neanderthals — and a third mysterious race. the so-called ‘mosaic’ skulls link to mysterious Denisovan humans who went extinct in the last ice age…