长头型即头部更窄的狗，包括萨摩耶、西伯利亚哈士奇以及阿拉斯加雪橇犬。
Dolichocephalic, or more narrow-headed, breeds consisted of Samoyeds, Siberian Huskies and Alaskan Malamutes.
通过把狼和一系列品种的狗杂交就可以繁殖杂交狼，包括德国牧羊犬、秋田犬、阿拉斯加雪橇犬、哈士奇和因纽特犬。
They can be bred by crossing wolves with a range of dog breeds, including German shepherds, akitas, malamutes, huskies and inuits.
“大体来说行动最迅速的狗无疑是一种猎犬，像是格雷伊猎犬”Helton接着说道，“其他狗同样也非常适合耐久跑，像是哈士奇。”
"The overall fastest dog is undoubtedly a sight-hound, most likely a Greyhound, " he added. "Other dogs are also very adapted to endurance running, such as huskies."
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