The tradeoff between vision and olfaction has been studied in flies. There’s a strain of Drosophila melanogaster that’s been reared in the dark for decades: the so-called “dark flies”. Here, the authors examine the effect of rearing “dark flies” in the light for 1 and for 65 generations, and observe how brain regions for vision are boosted even within 1 generation:

“Back to the light, coevolution between vision and olfaction in the “Dark-flies” (Drosophila melanogaster)”
Özer & Carle 2020 https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0228939

#neuroscience #DarkFlies #Drosophila #evolution #NeuroEvo