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Some herbivorous dinosaurs ate like vacuum cleaners

• Terrence Aym
Large swamp-dwelling dinosaurs—like the Brachiosaurus—had heads that floated on the water and sucked up their food like massive vacuum cleaners. So declare two scientists that compare the physiology of the gigantic brutes to the bulky, noisy household vacuum cleaners sold to consumers during the 1950s. 200 million years before canister vacuum cleaners made life that much easier for harried housewives, dinosaurs like the lumbering Brachiosaurus and Diplodocus were nature's natural vacuums.

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