Diet Secrets Of Elephant Family Named 'The Royals'

Two weeks after rains begin, an elephant family named "the Royals" usually switches to a grass diet to bulk up for pregnancy. But when they wandered off their African reserve, cattle grazed the grass so short that elephants couldn't eat it. The new study -- which suggests how climate change and human encroachment may affect endangered elephants -- used tracking collars and analyzed isotopes in tail hair to monitor the elephants' movements and diet.