Brazil's frogs came back — and museum jars finally explain why they vanished

At Boracéia in Brazil's Atlantic Forest, frog species that crashed in the early 1980s have largely recovered. Using DNA from museum specimens, researchers publishing in Molecular Ecology have now linked those historic declines to the chytrid fungus — and found that today's frogs appear to tolerate it, which is why populations persist alongside it. The detective work gives scientists a blueprint for reading other mysterious wildlife declines before they become irreversible.

SDG 15 · Life on land — Mechanism: tech innovation