The deadliest zoo attacks: When animals fight back

Meet the first baby Asian elephant born at the National Zoo in 25 years CNN’s Dana Bash describes it as “one of the coolest things” she’s ever done. She gets the exclusive opportunity to meet & feed the Smithsonian National Zoo’s newest addition, Asian elephant Linh Mai. Dana learns about the 440-pound, 2-month-old baby and gives her a special treat. Dana takes you behind the scenes and inside Linh Mai's journey and the Smithsonian’s efforts to conserve these endangered giants.