Evolution depends on random mutations to slowly ch...  ...nt species. What they found was clear evidence of interbreeding among extinct species, but not among living speci...

Gene sequencing the last few years has yielded amazing information about our early ancestors. With the exception of those of purely sub-Saharan African origins, present-day humans contain a small amount (1.5 to 2.1 perce...

Genetic archaeology is taking us into knowledge we never thought we'd find before gene-mapping came about. After all, finding fossils is a rare hit-or-miss event. Harvard evolutionary geneticist David Reich and his team...