2020-05-01 iD

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E ach year, millions of collectors and silver stackers around the world secure freshly struck American Eagle Silver Dollars. The ...

CRY LIKE AN EAGLE When I read “The Mighty Marvel of the Skies” in the March issue, it called to mind a rather unexpected sort of ...

contents Millions of years of evolution have endowed frogs with amazing attributes and abilities that enable them to successfull ...

COVER PHOTOS: Sankai/Getty; DRL; andriano_cz/Getty; DPA; RapidEye/Getty; GSinclair Archive/Contributor/Getty. iD (Ideas & Di ...

CAN ONE MAN DEFEAT Few threats to human civilization are as serious as the rapid spread of the world’s deserts. So far research ...

the tree into shape and protect it for half a year from grazing animals. Thanks to his care and its deep roots, the tree grew ba ...

PHO TOS :^ Wo rld^ V isio n. CAN A FOREST CONQUER A WASTELAND? All Australian agronomist Tony Rinaudo needs to transform a dry d ...

THE RAINMAKERS Researchers have found greater rainfall in areas of Haiti that have been reforested. The reason : The roots of tr ...

Over the past 250 million years, frogs have spread to almost every corner of the world —outliving the dinosaurs and surviving ic ...

CROWN OF CREATION Frogs come from a proud lineage. The oldest known frog fossil is from a creature that lived in what is now Mad ...

WHY STOP AT LITTLE IN THE POND ONE? MIRACLES A frog seldom comes alone—and that applies especially to the common frog (Rana temp ...

ALWAYS THE SAME CROAK? Frogs can ribbit, croak, cluck, bark, grunt, whistle, and peep. “Over the course of evolution, every frog ...

LUNCH IN A SPLIT SECOND There’s no way the tiny gnat flitting around in the grass saw it coming. How could it? A frog’s tongue c ...

30 MILLION YEARS OF EVOLUTION IN 12 WEEKS While it took prehistoric fish some 30 million years to emerge from the sea and start ...

FROGS AS BIOWEAPONS Not all frogs flee when they’re threatened. The golden poison arrow frog (Phyllobates terribilis), which is ...

SOCIAL CLIMBERS Climbing affords tree frogs a better view. In addition to having panoramic vision, frogs are able to see better ...

THE 100 OUR CLIMATE COMPANI THAT AR E DESTROYIN ...

E ES E NG orporations are killing people day after day, without having to fear prosecution or other consequences. That might sou ...