translation.en: But if you look closely, they're kind of like the polar bear and husky: no claws, flat fur, soft eyes, open mouth with no fangs, balletic movements, curvilinear movements -- all specific to play.
translation.zh: 但是如果你仔细的看，他们就像北极熊和哈士奇一样： 没有爪子，平滑的毛发，平和的眼神， 没有利齿的嘴巴，芭蕾般的动作， 曲线的运动 -- 都是有关玩耍的表现。