Related by context. Frequent words. (Click for all words.) 58 Caenorhabditis elegans 56 slime molds 56 flatworms 56 pluripotent cells 55 nematode worms 55 imprinted genes 55 melanogaster 55 fruit fly Drosophila 55 nanobacteria 55 endoderm 54 neural crest cells 54 multicellular 54 unicellular 54 micro RNAs 54 neural progenitor cells 54 Chlamydomonas 54 Klotho 53 bacterium Escherichia coli 53 C. elegans 53 single celled organisms 53 riboswitches 53 Evolutionary biologists 53 Wolbachia 53 centromeres 53 kipunji 53 primitive organisms 53 optical biosensors 53 flatworm 53 plesiosaurs 52 reproduce asexually 52 BY MARK WILSON 52 convergent evolution 52 multicellular organisms 52 Rad# 52 giant squids 52 herpes viruses 52 fluorescently labeled 52 Sertoli cells 52 protozoan 52 RNA sequences 52 mosasaurs 52 correlate genetic variation 52 evolutionary origins 52 plasmodium 52 cone snails 52 induced pluripotent stem iPS 52 embryonic stem ES 52 T. gondii 51 pancreatic tissue 51 mutant proteins 51 evolutionarily conserved 51 teratomas 51 mammalian genomes 51 coevolution 51 mesenchymal cells 51 vertebrate animals 51 fluorescent probes 51 evolutionary biologists 51 prokaryotic 51 astrocyte 51 Scientists theorize 51 epigenetic marks 51 Earthlike 51 Jeffrey Zaslow Hyperion 51 Fruit flies 51 Sociobiology 51 ganglion cells 51 hematopoietic cells 51 prokaryotes 51 single celled 51 fibroblast cells 51 eukaryotic cells 51 transplanted stem cells 51 histone modifications 51 Langerhans cells 51 Xenopus 50 zebrafish embryos 50 horned dinosaurs 50 ribonucleic acid RNA 50 chytrid 50 melanoma tumors 50 stem cell differentiation 50 contagious yawning 50 receptor molecule 50 tumor suppressor protein 50 hominid species 50 eukaryotic 50 quantum teleportation 50 melanosomes 50 feathered dinosaurs 50 chytridiomycosis 50 neural crest 50 negative refraction 50 mitochondrial genes 50 myoblasts 50 microglial cells 50 symbiont 50 EGF receptor 50 mole rats 50 genetically engineered mouse 50 mammalian cells