A crucial season lays ahead for the bogong moths in Australia, a staple food source for the endangered pygmy possum.
Each spring about 4.4 billion bogong moths head to the country’s alpine regions in south-east New South Wales - the biggest injection of nutrients into the area second to sunshine.
However, over the past two years, the billions of moths almost completely disappeared.
Zoos Victoria launched a moth tracker website to allow the public to photograph and log sightings of the migrating bogong moths this spring.
Zoos Victoria reproductive biologist Marissa Parrott says that citizen scientists are important to filling knowledge gaps about migration.