Michel Poinsignon / Peregrine falcon (Falco peregrinus) female excreting, Lorraine, France, May

Nick Upton / Sequence 3 / 4. Cleg fly / Horsefly (Haematopa pluvialis) excreting excess water as it swells up with blood sucked from photographer's arm, Wiltshire pastureland, UK, June.

James Christensen / Fulgorid Planthopper (Pterodictya reticularis) pair feeding on sap, showing plumes of excreted white wax, Colon, Panama

James Christensen / Fulgorid Planthopper (Pterodictya reticularis) feeding on sap, showing plumes of excreted white wax, Colon, Panama

Jane Burton / British show pony newborn foal passing its first urine, UK, sequence 24/26

Jane Burton / British show pony newborn foal passing its first urine, UK, sequence 25/26

Nature Production / Seven-spotted Ladybird {Coccinella septempunctata} feigning death and excreting stinking liquid from leg joints for self-defense,

Nature Production / Japanese Waxwing {Bombycilla japonica} excreting parasite's seeds, Japan

Kim Taylor / Tsetse fly {Glossina morsitans} excreting fluid after blood meal, from Africa