Smartphones and tablets can be equipped with an app that can help detect potentially blinding deteriorations of the eye. This can even be much more effective than traditional vision tests, according to a Swedish study.
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.