Fergus Gill / 2020VISION / Male Ringed plover (Charadrius hiaticula) on beach, Outer Hebrides, Scotland, UK, June. Did you know? When Plovers sense danger a parent bird will pretend to have a broken wing to distract predators.

Tony Phelps / Grass snake female feigning death - defensive behaviour, UK

Dave Bevan / Grass snake (Natrix natrix) pretending to be dead when threatened, Carmarthenshire, Wales, UK, June. Captive.

Stephen Dalton / Grass snake (Natrix natrix) feigning death, defensive behaviour, Sussex, UK

Roger Powell / Reeve or female Ruff (Philomachus pugnax) pretend feeding whilst studying a prostrate displaying satellite males at the lek. Varanger, Finmark, Norway, May.

Andy Rouse / 2020VISION / Wild boar (Sus scrofa) piglets, Forest of Dean, Gloucestershire, UK, March. Photographer quote: 'As these wild boar piglets walked out onto the track I tried to think 'flat' and pretend I was a leaf l...

Aflo / ic-04407 Child playing opticians with Golden retriever wearing glasses.

John Downer / Hypnotised pigeons, immobilised by tucking head under wing. Defensive behaviour.

John Downer Productions / Opossum feigns death by rolling over and lying still with mouth and eyes half open. Defensive tactic. (Resolution restriction - image digitised from film, 'Weird Nature' tv series)

John Downer Productions / Doves in a death-mimicking trance prompted by simply tucking heads under wings. Defensive tactic. (Resolution restriction - image digitised from film, 'Weird Nature' tv series)

Konrad Wothe / Dotterel (Charadrius morinellus) male, feigning injury in defensive display to lead predator away from nest, Sweden.

Roland Seitre / Australian pratincole (Stiltia isabella) injury-feigning display, defensive behaviour, Bedourie, Queensland, Australia.