Archives for posts with tag: sea

Researchers have invented a robot jellyfish, fueled by hydrogen, that could one day be used for ocean rescues. The vehicle, called Robojelly, uses shape memory alloys – metals that ‘remember’ their shape.

A type of plankton, called copepods, leap out of the surface of the ocean to avoid being eaten by fish. These tiny and brightly-coloured shrimp-like animals live just under the surface of the sea and can ‘fly’ 10 to 20 times the length of their body.

Corals can inflate themselves to avoid being buried in the sand.

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