Three big stories today: First, RFK Jr. shook up the CDC's vaccine advisory panel by firing several experts—raising eyebrows about future public health guidance. Meanwhile, scientists warn that ocean acidification has now hit levels that could seriously harm marine ecosystems. And in wildlife news, pangolins—already the world's most trafficked mammals—face a surprising new hunting threat that could push them closer to extinction.

Editor’s Note: These stories all point to growing instability in systems we rely on, whether it's vaccine policy, ocean health, or biodiversity. The CDC panel changes could fuel distrust in public health, acidification threatens fisheries and coastal economies, and pangolins are a bellwether for the broader extinction crisis. Basically, it's a rough day for people who care about science and nature.