They can even be handy with pulling a tooth!
Despite this, the National Parks Service has issued a ban making it illegal to operate drones of any kind (unless they are being used for official rescue work) inside of Yosemite National Park.
Here is the official notice:
"The park has experienced an increase in visitors using drones within park boundaries over the last few years. Drones have been witnessed filming climbers ascending climbing routes, filming views above tree-tops, and filming aerial footage of the park. Drones can be extremely noisy, and can impact the natural soundscape. Drones can also impact the wilderness experience for other visitors creating an environment that is not conducive to wilderness travel. The use of drones also interferes with emergency rescue operations and can cause confusion and distraction for rescue personnel and other parties involved in the rescue operation. Additionally, drones can have negative impacts on wildlife nearby the area of use, especially sensitive nesting peregrine falcons on cliff walls."