2020 Arctic Report Card: Sea ice loss, extreme wildfires

NOAA’s 2020 Arctic Report Card describes a region that is warming even more rapidly than scientists expected. Source: https://earthsky.org/earth/arctic-report-card-2020-sea-ice-loss-extreme-wildfires…

Why are whales big, but not bigger?

How did whales that feed on tiny prey evolve into the largest creatures on Earth? And why don’t they get even bigger? Source: https://earthsky.org/earth/why-are-whales-big…