Elephants A new paper in the journal Science reports that families tend to grow and prosper when they're led by big old females who can hear trouble coming when it's still miles away. We're talking about elephants, of course. NPR's John Nielsen has more on a study with important conservation implications.

Elephants

Elephants

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A new paper in the journal Science reports that families tend to grow and prosper when they're led by big old females who can hear trouble coming when it's still miles away. We're talking about elephants, of course. NPR's John Nielsen has more on a study with important conservation implications.