Moss bounds happily through the bush showing the usual exuberance of a young labrador. Despite this looking like play, he is on a serious mission to help fight the extinction of some of our most critically-endangered species.

Moss is a detection dog in training. Unlike other detection dogs, who might sniff out drugs or explosives, hell be finding some of Victorias smallest, best camouflaged and most elusive animals.

These dogs use their exceptional olfactory senses to locate everything from koalas high in the trees, desert tortoises burrowed deep under soil and even whales often more effectively than any human team could aspire to.

What makes Moss unique, however, is hell not only find endangered species in the wild, but will also be part of a larger team helping endangered species breed in captivity. These dogs will be the first in the world to do this, starting with a ground-breaking trial with Tasmanian devils.

Wildlife detection dogs are a very rare type of dog they are highly motivated, engaged and energetic, but also incredibly reliable and safe around the smallest of creatures. And Moss is the first dog to join Zoos Victorias Detection Dog squad, a permanent group of highly trained dogs that will live at Healesville Sanctuary.

Moss was adopted at 14 months old, after he somewhat failed at being a family pet. He is a hurricane of energy with an intelligent and playful mind. Hes thriving with a job to keep him occupied and new challenges for his busy brain.

One sign he was perfect for this program was his indifference to the free range chickens at his foster home. For obvious reasons, a dog who likes chasing chickens wouldnt be a good candidate for protecting some of Australias rarest feathered treasures.

Currently, Moss is learning crucial foundational skills, and getting plenty of exposure to different environments. Equally important, he is developing a deep bond and trust with his handlers.

The detection dog-handler bond is crucial not only for his happiness, but also for working success and longevity. Research from 2018 found a strong bond between a handler and their dog dramatically improved the dogs detection results and reduced signs of stress.

Healesville Sanctuary breeds endangered Tasmanian Devils every year as part of an insurance program to support conservation and research. This program is crucial to help protect the devil following an estimated 80% decline in the wild due to a horrific transmissible cancer, Devil Facial Tumour Disease.

But managing a predator thats shy, nocturnal and prefers to be left alone can be tricky. Wildlife, including Tasmanian devils, need a hands-off approach where possible, so they can maintain natural behaviours and thrive in their environment.

In the wild, devils leave scats or faeces at communal latrine sites and use scent for communication. Male devils can tell a female is ready to mate by smelling her scat. And we think dogs could be trained to detect this, too.

We aim to train dogs to detect an odour profile in the collected scat of female devils coming into their receptive (oestrus) periods, so we can introduce females and suitable males to breed at the optimal time. The odour profile will be further verified via laboratory analyses of hormones in the scats.

The project will also explore whether dogs can detect pregnancy and lactation in the devils. Currently, the best way to determine if a female has young is to look in her pouch, but our preference is to remain at a distance during this important time while females settle into being new mums.

If the dogs are able to smell a scat sample, while never coming into contact with the devil, and identify that a female is lactating with small joeys in her pouch, we can support her for example, by increasing her food while keeping a comfortable distance.

The results from this devil breeding research could offer innovative new options for endangered species breeding programs around the world. Wildlife detection in the field means we can more accurately monitor some of our most critically endangered species, and quickly assess the impact of catastrophic events such as bushfires.

Detection dogs are the perfect intermediary between people and wildlife they can sniff out what we cant and communicate with us as a team.

And over the next few years, the Detection Dog Squad will expand to five full-time canines. They will all be selected based on their personalities rather than specific breeds, so will likely come in all shapes and sizes.

Dogs may yet go from being mans best friend to the devils best friend and beyond, all starting with a happy labrador named Moss.

La Toya Jamieson, Wildlife Detection Dog Specialist, La Trobe University. Marissa Parrott, Reproductive Biologist, Wildlife Conservation & Science, Zoos Victoria, and Honorary Research Associate, BioSciences, University of Melbourne.

This article first appeared on The Conversation.

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