Laboratory-animal
Guides
Drosophila melanogaster
vinegar fly, lesser fruit fly, pomace fly, banana fly
Drosophila melanogaster is a small dipteran fly native to sub-Saharan Africa that has become cosmopolitan through human association. The species is attracted to rotting fruit and fermenting beverages, earning it the common name 'vinegar fly'—a more accurate descriptor than 'fruit fly,' which properly refers to tephritid pests that damage intact fruit. Since 1901, D. melanogaster has served as the premier model organism for genetic research, contributing to fundamental discoveries in heredity, development, neurobiology, and circadian rhythms. Six Nobel Prizes have been awarded for research using this species. Its utility stems from a rapid 10-day generation time, high fecundity, simple genetics with only four chromosome pairs, and extensive genetic tools.
Nauphoeta
speckled cockroach, lobster cockroach, cinereous cockroach
Nauphoeta is a monotypic genus of cockroaches in the family Blaberidae, containing the single species Nauphoeta cinerea. The genus is notable for its well-studied social behavior, including male territoriality and dominance hierarchies. Nauphoeta cinerea has become a widely used laboratory model organism for behavioral, physiological, and toxicological research, and has achieved a circumtropical distribution through human-mediated dispersal.