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Nature's 3D printer: Bristle worms form bristles piece by piece
Their mode of operation is astonishingly similar to that of a technical 3D printer ... the primary building material both for the exoskeleton of insects and for the bristles of bristle worms ...
Interesting Engineering on MSN10mon
Nature’s 3D printer: Marine worms form their bristles piece by piece
It turns out that these species develop bristles piece by piece, similar to the process of 3D printing ... role in building ...