Oops! The episode is no longer available but you can find other episodes below.Back to National Geographic: HighlightsWatch National Geographic: Highlights Episodes Onlineplay_circle_filledIn Etosha National Park, endangered black rhinos are protected from poachers 🦏 #NatGeoplay_circle_filledWant a healthy brain? Take up knitting! 🧶 #NationalGeographicplay_circle_filledWhat does it mean when the Namaqua chameleon changes color? 🤔 #NationalGeographicmoreWATCH IN APPplay_circle_filledchevron_leftchevron_rightComments