This robotic manta ray may speed underwater search and rescue
![](https://web.archive.org/web/20171209004349im_/https://media1.s-nbcnews.com/j/newscms/2017_49/2254921/171209-manta-ray-robot-mn-1555_8067817ae30b68a39c12f52e4ca3ac6b.focal-760x380.gif)
Technology
Denise Chow
The underwater bot can swim for up to 10 hours.
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The underwater bot can swim for up to 10 hours.