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Tiny, knotted robots jump, fly and plant seeds
When a knot lets go, it doesn't just fall apart. It snaps. That simple observation led Penn Engineers to rethink what a knot ...
The big cats are rarely seen at high elevations, so the sighting suggests that efforts to protect a wildlife corridor in the region are working April 23, 2026 11:37 a.m. Cool Finds The excerpt from ...
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