Amphibians are the most threatened vertebrate class on Earth, with nearly half of all species facing extinction. Mass die-offs from chytrid fungus, habitat loss, and climate change raise both conservation and welfare concerns for hundreds of millions of individuals.
Amphibian population collapses represent both a conservation crisis and a welfare emergency. Chytridiomycosis causes a particularly distressing death — affected frogs develop skin lesions, become lethargic, and die over days to weeks as their electrolyte balance fails. The scale of mortality from mass die-off events can involve hundreds of thousands of individuals. While conservation biology has focused primarily on species preservation, growing attention to individual animal welfare in wild populations highlights that mass disease events are also welfare catastrophes affecting individual beings capable of suffering. Habitat protection and biosecurity around wild amphibian populations can reduce both extinction risk and individual suffering simultaneously.