Also on this week's episode: tracking down a stellar explosion, climate apathy, arctic foxes are key in northern food web and ...

Research published in Ecology reveals that conditions favoring polar bears also favor Arctic foxes — with knock-on effects for their prey, like the Canada geese (and their nests) seen here.

In a single year, one polar bear can leave roughly 300 kilograms of prey for other animals to dine on. Altogether, the carnivores provide 7.6 million kilograms of carrion for scavengers throughout the ...