The Red-Crowned Toadlet is facing ever increasing threats, but thanks to some dedicated volunteers, help is on the way.

Restricted exclusively to sandstone areas around Sydney, the toadlets’ home has been impacted by habitat loss due to sandstone harvesting for garden landscaping as well as pollution, disease and changed fire regimes.

The 3cm-long red-crowned toadlet is listed as vulnerable by the New South Wales State Government and already some local populations of the frog have become extinct.

Professor Michael Mahony from the Faculty of Science and Information Technology at the¬†University of Newcastle¬†believes that human interaction is the biggest threat to the species. “Mostly human impacts affect their habitat,” he says. “Unfortunately, habitat of the red-crowned toadlet overlaps with urban development on the sandstone ridges of the Sydney basin.”

Read more in the National Geographic.