Photo: Frank Deschandol / Wildlife Photographer of the Year

A parasitic cuckoo wasp approaches the clay burrow of a mason bee. The wasp carries a water droplet, which it uses along with its saliva to soften the clay to get at the burrow within. Once inside, the wasp lays its eggs and reseals the burrow; when the eggs hatch, the wasp progeny feeds on mason bee larvae.

Source link