Nature2017-2020North Atlantic (US/Canada coastal waters)low confidence

The ongoing North Atlantic right whale unusual mortality event includes 41 whales: 31 dead whales and 10 whales last seen alive with severe entanglements or vessel-strike injuries.

Notes on verification

Confirmed by NOAA primary sources and corroborated by multiple independent contemporaneous reports (Smithsonian, IFAW, NRDC, Defenders of Wildlife, HSLF) all citing the same 31 dead + 10 injured = 41 total figures for the ongoing UME as of mid-2020. [tier=unverified indep_score=0.3 clusters=6 claim_tier=notable] [rescored 2026-09-15: curated origin-host map (PR #65); unclassified hosts no longer scored as aggregators]

Sources

The ongoing North Atlantic right whale unusual mortality … · DeepInquiry