Amphibians, such as frogs and salamanders, are suffering greatly from climate change and other outside impacts. Invasive species, such as non-native fish being introduced in the American West's mountainous areas, are further impacting native amphibians. "Amphibians predominantly use mountainous areas' small, shallow ponds to breed and feed," said Maureen Ryan, one of the researchers, in a news release. "These kinds of wetlands are at the…