Related by context. Frequent words. (Click for all words.) 61 Neanderthal DNA 61 Neandertal 60 Neandertals 60 hominins 58 interbred 58 genus Homo 58 mitochondrial genome 57 Denisovans 57 Homo sapiens 56 retrovirus 56 melanosomes 56 common ancestor 55 Neanderthals 55 lineages 55 prokaryotes 55 single celled organisms 55 Homo Sapiens 55 mutated genes 55 gene sequences 55 coprolites 55 mutant strain 54 genetic sequences 54 hominid 54 genetic variation 54 simian immunodeficiency virus 54 avian flu viruses 54 archaea 54 prion disease 54 genetic markers 54 genomes 54 genetically 54 genetic variants 54 humans 53 fossilized remains 53 mtDNA 53 highly pathogenic H#N# 53 homo sapiens 53 mutation 53 Archaeopteryx 53 Paabo 53 Homo erectus 53 Y chromosomes 53 Toxoplasma 53 Geneticists 53 theropod 53 theropods 53 Ardipithecus 53 herpes viruses 53 genetic makeup 53 mutations 53 gene variants 52 nonhuman primates 52 pluripotent cells 52 microfossils 52 iPSCs 52 Neanderthal genome 52 Wolbachia 52 genetic variant 52 genetic mutations 52 Neanderthal 52 haplotypes 52 genetic mutation 52 carnivorous dinosaurs 52 anatomically modern 52 tyrannosaur 51 Poinar 51 genes 51 mammalian species 51 transgenes 51 gene mutation 51 avian influenza viruses 51 multicellular 51 Y chromosome 51 geneticists 51 baker yeast 51 eukaryotes 51 thylacine 51 clades 51 FOXP2 51 BRCA genes 51 Homo floresiensis 51 retroviruses 51 interbreeding 51 megafauna 51 FTO gene 51 parasitic worms 51 gene expression patterns 51 BRCA1 gene 51 Homo habilis 50 ancestor 50 DNA sequences 50 H#N# viruses 50 genetically distinct 50 chimeras 50 mouse embryo 50 Australopithecus 50 mammoths 50 phylogeny 50 genetic abnormalities 50 Mitochondrial DNA 50 measles virus