This undated image provided by &quot;Growing Up Wild&quot;,  shows, Bindi Irwin, 13, and Robert Irwin, 8, children of famed animal adventurer Steve Irwin, pet an echidna at the Australian Zoo outside Brisbane, Aus. during a taping of “Growing Up Wild,” a new series from Fremantle Media that can be seen on The Pet Collective, a new YouTube Channel. (AP Photo/Growing Up Wild)