Justin Claude Rakotoarisoa, a guardian of Madagascar’s amphibians, has died, aged 45

In Madagascar, frogs are not background noise. They are a measure of how much forest still functions. The island holds an outsized share of the world’s amphibian diversity, and almost all of its frog species occur nowhere else. That concentration is both a wonder and a warning. When habitat thins, wetlands silt up, or disease […]