Frogs in Brazil’s Atlantic Forest crashed between 1979 and 1982 and no one knew why; nearly 50 years later, scientists tested over 370 preserved museum frogs and found a killer fungus that was absent before 1979

Recent investigations have revealed that chytridiomycosis, a fungal disease, was a significant factor in the decline of frog populations. This disease notably proliferated during the late 20th century, aligning with substantial frog disappearances. By analyzing preserved specimens, researchers have documented the disease’s historical effects. While a few species exhibit resilience, caution is necessary in applying these findings broadly.