What is highlighted as the largest documented vertebrate die-off?
Understand the Problem
The question is asking for information about the largest documented die-off of vertebrates among the provided options, focusing on ecological or environmental impacts affecting different marine species.
Answer
2014-2016 Pacific marine heatwave killed four million Alaska seabirds.
The largest documented vertebrate die-off linked to warming oceans is the 2014-2016 Pacific marine heatwave, which killed roughly four million Alaska seabirds.
Answer for screen readers
The largest documented vertebrate die-off linked to warming oceans is the 2014-2016 Pacific marine heatwave, which killed roughly four million Alaska seabirds.
More Information
The 2014-2016 marine heatwave significantly impacted Alaska's ecosystem by wiping out more than half of the common murre seabird population. This event highlights the severe effects of climate change on marine and bird species.
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