Acknowledgements
We would like to thank Prof Steven Stearns, Dr Maria Paniw, and Dr Camille Desjonquères for significant feedback on earlier versions of this manuscript. Moreover we would like to thank the Zoology Department Fly lab at the University of Oxford for their helpful discussion. ACV was supported by the National Science Foundation Postdoctoral Research Fellowship in Biology under Grant No. (2010783), hosted by RSG. IS was supported by a Biotechnology and Biological Sciences Research Council (BBSRC) Fellowship (BB/T008881/1) and a Welcome Institutional Strategic Support Fund, University of Oxford (BRR00060). JSP was supported by the Marie Sklodowska-Curie Fellowship (101030973, “CyclesofLife”) hosted by RSG. RSG was supported by a NERC Independently Research Fellowship (NE/M018458/1).