Mammalian Models Homo sapiens (Human) Mus musculus (Mouse) Rattus norvegicus (Rat) Non-Mammalian Models Saccharomyces cerevisiae (budding yeast) Schizosaccharomyces pombe (Fission Yeast) Neurospora (filamentous fungus) Dictyostelium discoideum (social amoebae) Caenorhabditis elegans (round worm) Daphnia Drosophila melanogaster (fruit fly) Danio rerio (zebrafish) Xenopus (frog) Gallus gallus (chicken) Other Model Organisms Arabidopsis thaliana