US Department of the Interior @Interior
The U.S. has about 300 of the world's estimated 8,000 amphibian species! They serve as good indicators of significant changes in the environment because their bodies are much more sensitive to factors such as disease, pollution, and toxic chemicals. https://t.co/LxerRXZKMv https://t.co/TYQJ2AZHG4 — PolitiTweet.org