‘Something very unusual’ seen swimming above manta ray near Honeymoon Island
A drone operator captured a rare video of a manta ray near Honeymoon Island with "something very unusual" swimming above it ...
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This Manta Ray underwater drone can fulfill high-endurance missions
According to DARPA, the Manta Ray initiative aims to demonstrate key ... Mimicking the shape and movement of its namesake fish, the drone features a lifting body with sea glider-like properties ...