This National Geographic fond d’écran might contain
gamme, gamme de montagne, chaîne de montagnes, chaîne, chaîne de montagne, plage, montagne, and gamme des montagnes.
A Pitbull named Goliath has become very protective of his owner after he was diagnosed with a brain tumor. Cesar has been working with Goliath and his family on turning Goliath's overprotective energy into something positive.