It measures up to 25 millimetres, has a distinctive blue sheen and favours horse manure and cow pats. The dor beetle is most active in lower light. You may hear the hum of its wings on late spring ...

Dung beetles are not as celebrated as the park’s black bears and elk, but they arguably play as important an ecological role as the park’s larger denizens — they clean up after them. To a dung beetle, ...