Penn scientists tracked fruit flies in outdoor cages for four months; seasonal shifts were linked to genetic changes across more than 60% of the genome

In an intriguing four-month investigation conducted in Philadelphia’s experimental orchard, researchers studied Drosophila melanogaster fruit flies and discovered that over 60% of their genome underwent transformations driven by environmental pressures. The study highlighted that different traits can evolve at variable rates, suggesting a complex nature of adaptation. These findings enhance existing knowledge regarding evolutionary changes, which may also be relevant to longer-lived species like humans as they confront climate challenges.