Suzi Eszterhas / Common Wombat (Vombatus ursinus) five month old orphaned joey with pacifier in mouth, Bonorong Wildlife Sanctuary, Tasmania, Australia

Juergen Freund / Tolga Bat Hospital volunteer handling Little red flying foxes (Pteropus scapulatus) babies wrapped in nappies cuddling a pillow and sucking on pacifier. Tolga Bat Hospital, Atherton Tablelands, Queens...

Suzi Eszterhas / Common Wombat (Vombatus ursinus) five month old orphaned joey with pacifier in mouth, Bonorong Wildlife Sanctuary, Tasmania, Australia

Suzi Eszterhas / Raccoon (Procyon lotor) six day old orphaned baby sucking on pacifier at wildlife rehabilitation center, WildCare, San Rafael, California

Suzi Eszterhas / Raccoon (Procyon lotor) orphaned baby sucking on pacifier, WildCare Wildlife Rehabilitation Center, San Rafael, California

Doug Gimesy / Grey-headed flying-fox (Pteropus poliocephalus) female orphaned infant, aged 6 weeks, sucking on a pacifier, being held by a rescuer whose reflection can be seen in the pups eye. Microbats of Melbourn...

Doug Gimesy / Grey-headed flying-fox (Pteropus poliocephalus) female orphaned infant, aged 6 weeks, sitting in the palm of her carers hand, sucking on a pacifier, Microbats of Melbourne, Templestowe, Victoria, Aust...