Scientists searched for threatened Australian rainforest frogs without seeing or hearing them; DNA in creek water collected up to 22 km downstream revealed populations in places where the frogs had disappeared
​Photos of a study species: the Australian Lace-lid (L. dayi)Photo credit: Conrad J Hoskin. In the cool, wet upland streams of Queensland’s Wet Tropics, several species of rainforest frog were pushed to the brink in the 1980s and 1990s by chytrid fungus,…