Manta rays are elegantly shaped. They swim by flapping their fins like enormous wings, and their gills filter for plankton ...
Explore the world’s oceans like never before with the Manta Ray, DARPA's cutting-edge underwater drone. Discover its ...
The new underwater drones, with names such as Ghost Shark, Herne and Manta Ray, can typically dive thousands of feet below the surface and operate largely without human interaction for days on end.
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