@CNN: The monarch butterfly population plummeted 86% since late 2017 in coastal areas of California, according to a preservation group https://t.co/bMs8tZi4cu https://t.co/UyG9R9fDgb

@CNN: The monarch butterfly population plummeted 86% since late 2017 in coastal areas of California, according to a preservation group https://t.co/bMs8tZi4cu https://t.co/UyG9R9fDgb