Bird flu is causing thousands of seal deaths. Scientists aren’t sure how to slow it down
Editors’ notes This article has been reviewed according to Science X’s editorial process and policies. Editors have highlighted the following attributes while ensuring the content’s credibility: fact-checked peer-reviewed publication reputable news agency proofread by Patrick Whittle A gray seal swims in Casco Bay, off Portland, Maine, in this Sept. 15, 2020 file photo. Seal die-offs from