 In May 2010, the project released a draft of their report on the sequenced Neanderthal genome.Contradicting the results discovered while examining mitochondrial DNA, they demonstrated a range of genetic contribution to non-African modern humans ranging from 1% to 4%.From their "Homo sapiens" samples in Eurasia (French, Han Chinese and Papuan) the authors stated that it is likely that interbreeding occurred in the Levant before "Homo sapiens" migrated into Europe.