While the idea of emus has merit as camels have proven themselves to be effective and efficient mass transit in the Middle East for centuries, it wouldn't be practical. While the technology is proven it would take Metrolinx a decade to determine the proper platform heights to accommodate the emus. and to determine which emus would be express and which would be provide local service. The emus are also proprietary so any new platforms would also have to be designed to accommodate future ostrich technology so Metrolinx wouldn't be at the mercy of a single supplier from NZ. Also it would be very expensive as Scarborough would demand all new emu tunnels for fairness and respect.