On Ukraine's front line, birds are weaving abandoned drone cable into their nests.
The cable makes a drone impossible to jam: instead of a radio link, it unspools a thin glass thread that can run for twenty kilometers. Afterward, the thread just lies there.
One nest, found near Chorne in the Kharkiv region, now sits in the Kyiv War Museum. The war saw an unjammable link. The birds saw thread.