View image in fullscreenErth has been staging puppetry-based live dinosaur productions around the world for more than 35 years.Photograph: Blake Sharp-Wiggins/The GuardianShareView image in fullscreenArtistic director Scott Wright says the Erth team play in the ‘uncanny valley’, creating lifelike works that suspend disbelief.Photograph: Blake Sharp-Wiggins/The GuardianShareView image in fullscreenArtist Kat Lynch works in the jaws of a project at the Erth workshop in Sydney.Photograph: Blake Sharp-Wiggins/The GuardianShareView image in fullscreenThe scale, detail and realism of Erth’s puppets are achieved with