Up to 80 eastern quolls have been born at Mulligans Flat sanctuary in Canberra's north in the past few weeks in a win for the species which have been extinct on mainland Australia since the 1960s.
The babies have been captured moving about their Canberra sanctuary in rare footage set to assist with the research and help get the community involved.
About one-third of the newborns, which have been dubbed "quollettes", will survive long enough to enter the breeding program at Mulligans Flat.
Some are also likely to be transferred to a separate breeding program at Mount Rothwell in Victoria.
Mulligans Flat sanctuary manager Will Batson said it was exciting and a sign of success to see the young ones moving about the sanctuary.
"They're quite elusive animals and I think it is probably rare to have that much quality vision," Mr Batson said.
"We were thinking the young ones were going to start emerging, getting braver and leaving the den. It's a great way to engage the community and get people excited about conservation and Australian wildlife," Mr Batson said.
ANU PhD student Belinda Wilson is studying the eastern quolls at Mulligans Flat Woodland Sanctuary.
Ms Wilson said it was a bumper season for the babies, and a fixed fence meant it would prove more successful after quite a few escaped and were predated last year.
"It's a pretty bumper season," she said.