2 years ago
A gut-invading parasite is plaguing monarch butterflies in Calif.
After rebounding from the brink of extinction, monarch butterflies are once again in crisis. The California Department of Fish and Wildlife (CDFW) says that from 2021-2022, California's western monarch population plummeted to less than 2,000 and flew back up to 200,000 as of this year – but researchers have discovered a new threat to the iconic migratory butterfly species.
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