#Mammals were adapting from life in the trees to living on the ground before dinosaur-killing asteroid https://phys.org/news/2025-04-mammals-life-trees-ground-dinosaur.html
Down to earth: therian mammals became more terrestrial towards the end of the Cretaceous https://onlinelibrary.wiley.com/doi/full/10.1111/pala.70004
"plant life changed toward the end of the #Cretaceous, with flowering #plants creating more diverse habitats on the ground... The vegetational habitat was more important for the course of Cretaceous mammalian #evolution than any influence from #dinosaurs"