>>56726735On second thought, a better example of divergence is Passimian and Grafaiai.
The ancestor of the lemurs probably arrived in Madagascar floating on a log from the mainland, and finding no competition they took over different niches and diversified into different shapes and sizes, from the gigantic Archaeoindris (330-550 lb) to the tiny Microcebus (1.1–1.2 ounces).