Polar bears are no one’s prey, except for climate change itself. John Whiteman says our human fate is tied up with the fate of the polar bears. And: Birds have an unusual predator. Windows. Karen Powers says that an $8 pack of window decals could be lifesaving.

Later in the show: We’ve all killed a spider or sprayed weeds in the garden. Todd Tupper encourages us to start trying to live humbly and more mindfully with nature.