人类的第一个朋友

He has shared our lives for 20,000 years. Along the way, he has helped us find food, kept our livestock, protected us from our enemies, guided us in extreme conditions, and saved us from peril. Now, he comforts us, relieving loneliness and helping us cope with old age. How did dogs come about? 最新最经典好看的影视剧-可搜影视为您提供人类的第一个朋友在线观看，更多影视请访问www.keso.org