Narrator: The Mariana Trench is the deepest point on Earth ... Narrator: But if you put out some food, some of the planet's strangest creatures would emerge from the darkness.

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Separately, the researchers also developed a soft gripper, which can be attached to a rigid robot. It was tested in the South China Sea, where the team attached it to an arm on a submersible, which ...

China live-streamed footage of its new manned submersible parked at the bottom of the Mariana Trench on Friday, part of a historic mission into the deepest underwater valley on the planet.