Bush is known for designing Feed bags, the proceeds of which go to United Nations World Food Program (WFP).

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Lauren Bush and Ellen Gustafson launched FEED Projects in 2007 with the aim of selling bags to defeat world hunger.

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The same goes for robotic spoons that make it easier for the infirm to feed themselves, power suits that help lift heavy grocery bags, and a variety of machines that watch the house, vacuum the carpet and so on.

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They feed almost exclusively on jellyfish, and many have accidentally swallowed plastic bags dumped into the ocean, Mast said.

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