Dinosaurs are often associated with massive sizes, but a new study explores why they rarely became tiny. The research suggests that while dinosaurs could become giants, competition with early mammals may have prevented them from ever becoming truly tiny, with the smallest known dinosaurs weighing around one pound, roughly the size of a large rabbit.
Key Insights
The study proposes that ecology, rather than physiology, may have imposed a lower size limit on dinosaurs. Early small mammals occupied ecological niches that could have supported mouse-sized dinosaurs, effectively preventing them from becoming small. This finding sheds new light on the evolution of dinosaurs and their interaction with other species in their ecosystems.
