... change Natural variation For almost 100 years, functional genetics has relied on the study of a small number of laboratory model organisms amenable to manipulation, or of domesticated species where selected phenotypes could bring an entry point into the identification of the causal genes...

... systems. Ecology zebrafish Drosophila Cavefish Genetic screen Natural variation Sleep appears to be fundamental to animal life, yet little is known about how sleep has evolved throughout the animal kingdom. In diverse animal taxa, poor sleep can have detrimental effects on development...

...Benjamin Houot; Nicolas Svetec; Raùl Godoy-Herrera; Jean-François Ferveur SUMMARY The natural variation of sex-specific characters between populations can favor their behavioral isolation, eventually leading to the formation of new species. Marked variations for male courtship, mating...

... reptiles. Bull. Am. Mus. Nat. Hist. 83 , 261 -296. Crawshaw, L. I. ( 1980 ). Temperature regulation in vertebrates. Annu. Rev. Physiol. 42 , 473 -491. de Bono, M. and Bargmann, C. I. ( 1998 ). Natural variation in a neuropeptide Y receptor homolog modifies social behavior and food response...