Feeling a tad bit happier? Seeing a frog or toad in the wild isn’t just pleasant. It’s a good sign, too! Not in the “good omen” sense (though many cultures would say this), but because frogs and toads are excellent indicators of ecosystem health. Their presence can be a signal of a well-functioning ecosystem, clean water, and a disease-free habitat. Amphibians play important roles in food webs as both predators and prey, but they’re also famously sensitive to environmental changes. A big reason