This shrimplike creature, called Cylindrarcturus, was caught floating through the deep waters near Antarctica.

Most of the more-than-700 species snapped up by scientists were very small—less than 0.2 inches (about 5 millimeters)—and nearly all, like Cylindrarcturus are ghostly white.

“It's so deep and dark down there, you don't need any color,” said Katrin Linse, a marine biologist at the British Antarctic Survey.

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