一项最新的研究显示：驯养的狗所具有的多种多样的颅骨形状已经堪比其他的哺乳动物的种类了，例如熊、鼬鼠和海豹。
A new study reveals that the variety of skull shapes among domestic dogs has become just as diverse as the variety between other mammal species, such as bears, weasels, and seals.
结果表明：虎骨、豹骨、熊骨、狗骨的颗粒面积和颗粒百分比近似，猫骨颗粒面积最大。
The results showed that the powder area and percentage of bones of tiger, leopard, bear and dog were similar. And the powder area of cat's bone was the largest.
结果表明：虎骨、豹骨、熊骨、狗骨的颗粒面积和颗粒百分比近似，猫骨颗粒面积最大。
The results showed that the powder area and percentage of bones of tiger, leopard, bear and dog were similar. And the powder area of cat's bone was the largest.
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