Meet the Little Ripper: an unmanned aerial vehicle designed for shark hunting and search/rescue operations. This military-grade, battery-powered drone has a front-mounted camera and can fly up to 100 km and 150 minutes on battery. It flies above beaches and the ocean to spot sharks.
Little Rippers cost $250k. They are ready to fly in minutes and can drop rescue packs. More information is available here.
[H/T: Gregg Porteous]