The Russian president flew a motorized glider aimed at leading a flock of Siberian cranes raised in captivity to their winter nesting grounds. To appear to be one of them, Putin donned a white jumpsuit and helmet.
Scientists have found that the aquatic birds are good indicators of toxins in the environment. That's why researchers have taken to the waters of western Maine for what's believed to be the longest-running loon monitoring study in North America.
It's not unheard of in the animal kingdom for males to bear the brunt of early child rearing. But in one species of snail found off the coast of Baja California, many of the eggs the males lug around on their shells aren't even their own offspring.
Africa is in the middle of what Jeffrey Gettleman of The New York Times calls an epic elephant slaughter. He says poachers are killing more elephants now than at any time in the last two decades. He talks to Steve Inskeep about what's behind the resurgence in poaching and where the ivory is going.
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