Giant 3D-printed 'bird nests' are being built in forests — and they could solve a critical issue

Giant 3D-printed 'bird nests' are being built in forests — and they could solve a critical issue

Researchers from the University of Melbourne are creating specialized bird nests 3D-printed from mushrooms, National Geographic reported. Designer Dan Parker developed these experimental "prosthetic hollows" to attract specific bird species, such as the marsh tit. Photo Credit: University of Melbourne In the past, these birds adapted to live in the hollows of dead trees. This provided them with a water-tight, insulated place to raise their chic…