Related by context. Frequent words. (Click for all words.) 65 subspecies 62 genetically identical 60 clades 60 species 59 lineages 58 interbred 58 clade 55 genus 55 frog species 54 genetic diversity 54 common ancestor 53 avian species 53 subpopulations 53 yellow legged frog 53 genetically 52 extinct 52 taxa 52 interbreeding 52 subfamily 52 vertebrate species 52 avian influenza viruses 51 theropod 51 mtDNA 50 genetically diverse 50 genus Homo 50 mammal species 50 theropods 50 coronaviruses 50 mammalian species 50 flycatcher 50 Archaea 49 genera 49 hermaphrodites 49 Plasmodium 49 mammal 49 phylum 49 evolutionarily 48 diatom 48 simian immunodeficiency virus 48 Wolbachia 48 phylogeny 48 primate species 48 interbreed 48 breeding colony 48 P. falciparum 48 Poinar 48 critically endangered 48 carnivorous dinosaurs 48 haplotypes 48 subpopulation 48 extirpated 48 gene sequences 48 phylogenetic 48 chytrid fungus 48 Ardipithecus 47 breeding pairs 47 orchid species 47 genetic variability 47 damselflies 47 speciation 47 clouded leopard 47 bird species 47 Homo sapiens 47 coral species 47 ant species 47 wintering grounds 47 mammals 47 keystone species 47 taxonomic 47 single celled 47 breeding colonies 47 vertebrates 47 translocations 47 amphibian species 46 extinct species 46 Critically Endangered 46 populations 46 hybridized 46 heritable 46 genetic markers 46 megafauna 46 multicellular 46 alleles 46 asexual reproduction 46 archaea 46 herpes viruses 46 penguin species 46 heterozygous 45 mycobacteria 45 hominins 45 Archaeopteryx 45 coronavirus 45 genetic variation 45 single celled organisms 45 biologically 45 skink 45 eukaryotic 45 clonal 45 Late Cretaceous 45 Extinct 45 vertebrate