Even seemingly small ecological differences can spark the evolution of new species: a study from #unibern shows that in sticklebacks, the mere presence of another fish species is enough to produce different forms — and thus, new species. https://mediarelations.unibe.ch/media_releases/2025/media_releases_2025/creation_of_new_species/index_eng.html
@snf_ch
#Evolution #Biodiversity #Speciation