This Tool Carves Hollows in Trees to Help Endangered Wildlife

In Australia alone, 303 species need hollows to nest and shelter in, including 31% of native mammals and 15% of native birds. The Hollowhog has a circular cutting head which spins at 11,000 rotations per minute, with an exhaust that sucks out woodchips. It enables arborists to drill deep into tree trunks to create habitats where endangered creatures can live.