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fishing map

VESSEL VIEWER  By tracking the activity of more than 70,000 fishing vessels, researchers made this 2016 map of total global fishing activity. Dots represent the average hours of activity within an area spanning 10,000 square kilometers.

seal pup

BLOWN AROUND  Prevailing winds can displace migrating northern fur seal pups, who begin their epic journeys at just 4 months old, by hundreds of kilometers.

dwarf pines

BARREN TREES  Modern dwarf pines (shown) become unable to reproduce when irradiated by ultraviolet-B lamps. A similar fate may have befallen forests 252 million years ago, when massive bursts of volcanic gases likely weakened Earth’s ozone shield.

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