Corvus Robotics designed these autonomous drones to be curious. Their sole purpose is to know their assigned warehouse inside and out, sort of like bees maintaining their hives. The drones can fly for weeks at a time exploring every piece of inventory around them with the idea that they can create a fully autonomous inventory tracking system.

Mashable
Waymo under investigation for school bus incident
Federal investigators are looking into a recent incident involving an autonomous driving Waymo that passed a fully stopped school bus, according to the National Highway