Research assistant Dave Rhind nabs a long-necked turtle at Moonshine Gorge in the Kimberley, Western Australia.

Expedition biologists Geoffrey Kay and Simon Clulow inspect a ‘night tiger’ or ‘red and white banded tree snake’ (Boiga irregularis) during one of the frequent night surveys held at Emma Gorge during the expedition.

Volunteer Gloria Parker helps bite-force test a young freshwater crocodile.

Dr Brendan Ebner from Griffith University wades in to place one of his Baited Remote Underwater Station cameras down for a freshwater fish survey. Dr Dave Morgan from Murdoch University and volunteer Betty Jacobs have washed their hands of the stinky bait, looking on in the background.

A black-palmed rock monitor (Varanus glebopalma).

Research assistant Dan O’Brien takes notes, while scientists Geoff Kay from the Australian National University (middle) and Steve Wilson from the Queensland Museum (right) walk the Emma Gorge toad fence checking funnel, sand an pit traps for signs of reptiles, small mammals and frogs.

Research assistant Amanda Lillyman (left) and Bret Stewart (right) with scientist Simon Clulow as he measurers a magnificent tree frog.

Volunteers Eddie Munnings (left) and Jacob Westerhuis (right) take a gander at a Magnificent Tree Frog (Litoria spendida) found by Newcastle University scientist Simon Clulow. At 205g, this specimen may well be the weightiest Australian frog on record and therefore the heftiest tree frog in the world.

Head scientist Dr Sean Doody speeds back to base camp after a day of surveying monitors, crocodiles and snakes.

Simon Cherriman , AG Society Young Conservationist of the Year, who’s an ornithologist and filmmaker, describes the delicate nature of an owlet-nightjar he had captured during the early hours of the morning near saddle back ridge, El Questro Wilderness Park.

The sun sets over the Coburn Range escarpment and the mouth of Emma Gorge. A 1.3km fence designed to keep cane toads out of the gorge can be seen in the foreground. The scientists on the AG Scientific Expedition in May 2011 also used the fence to guide animals into traps to record biodiversity in the area.

A common planigale (carnivorous marsupial) found on the Emma Gorge fence.

Sandra Maynard, Lauren Vanderwyck, and Dr Michael Braby from the Darwin Museum and Art Gallery, head back from a day of butterfly surveys with Jane Fenwick and Katie Schubert .

A magnificent tree frog (Litoria spendida). The species might be the heaviest tree frogs in the world.