Arsenal is a 7-year-old dog, which equals to about 50-year-old person. He has only used his hind legs to climb 20 stairs and finished it in just 7.47 seconds.
Subscribe to us on Youtube: https://www.youtube.com/user/CCTVcomInternational
Download for IOS: https://itunes.apple.com/cn/app/cctv-news/id878031632?mt=8
Download for Android: https://play.google.com/store/apps/details?id=com.cn.cctvnews
Follow us on: