The swarm consists of SwarmDivers, small rocket-shaped vehicles, that can work cooperatively to carry out impossible feats for single robot submarines, as shown in a new video. The SwarmDiver drones were unveiled last week by Aquabotix, a firm based in Australia. While many autonomous underwater vehicles are already in use, Aquabotix says their SwarmDivers can work as a group, with one operator controlling the entire swarm via a simple interface.

American technology companies are traveling to the other side of the world to raise a buck. The underwater drone company Aquabotix is one U.S. startup eyeing the Australian Securities Exchange (ASX) as a venue to publicly list, rather than looking for venture capital at home. If successful, it will join 12 U.S. tech listings to take place in Australia since 2013. There's fellow drone tech company Droneshield, which listed in 2016, as well as the troubled HR software startup, 1-Page in 2014. So why are they all heading south?