GREENLAND: Scientists in Greenland are developing fast and efficient ways to monitor walrus populations in remote locations using high-resolution satellite images. If successful, the technique could be rolled out to other species.
Last year so many rodents roamed Norwegian forests that residences were overrun, from mountain cabin attics to house basements. This summer in southern Norway, rodent numbers have plummeted to roughly one-hundredth of what they were just a year ago.
They’re small and almost unnoticeable, until their population explodes. Now recent swings in Norway’s small rodent populations have underscored the importance of these creatures for the health of the entire natural community.