Two endangered Antechinus species, the black-tailed dusky antechinus, and the silver-headed antechinus, survive only in tiny populations in some small areas of east coast mountain ranges. They ranked in the top 20 Australian mammals most likely to go extinct. This project uses detection dogs together with other search methods to systematically survey areas where these Endangered species have been previously detected or are suspected to occur. Knowing where species occur is vital to their effective management.