Jane Burton / Baby Grey Squirrel (Sciurus carolinensis) 'kissing' a tabby kitten.

Edwin Giesbers / European ground squirrel (Spermophilus citellus) Gerasdorf, Austria. April.

Mark Bowler / Black spider monkey (Ateles chamek) sticking tongue out, captive, Peru.

Nick Upton / 2020VISION / Two Young Common / Eurasian cranes (Grus grus) flying to keep up with two carers dressed in crane costumes acting as surrogate parents running away from a dog during a predator aversion training exerc...

Nick Upton / 2020VISION / Group of young Common / Eurasian cranes (Grus grus) looking alert as two carers dressed in crane costumes raise model adult crane heads on seeing a dog approaching during a predator aversion training...

Nick Upton / 2020VISION / RSPB warden Harry Paget-Wilkes and Black labrador (Canis familiaris) approaching young Eurasian / Common cranes released by the Great Crane Project during a predator aversion training exercise, Somers...