LifeNeanderthal genome reveals interbreeding with humans Sequence reveals how lots of us came to have Neanderthal genes – but we won't be able to clone our extinct closest relatives 51¶¯Âþ
LifeFirst twin sequences: What do they say about disease? Identical twins are hugely valuable in teasing apart genetic and environmental factors, but the genomes tell us little about the origins of disease 51¶¯Âþ