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This brown rat's angry display at the photographer reflects 73 generations of breeding for hostility to humans. 這只褐鼠（家鼠）對著攝影師做出的憤怒表情反映了把對人類的敵意進行了73代培養(yǎng)的結(jié)果。
A seriesof images captured by a British student in Hertfordshire show adaring brown rat nibbling a leopard's lunch. 日前，一名英國學(xué)生在赫特福德郡野生動物保護中心，拍到了一組老鼠搶食獵豹午餐的照片。 edu.sina.com.cn
CONCLUSION: Cold acclimation not only increase concentration of UCP in mitochondria inner membrane of rat brown fat, but also increase its activity. 結(jié)論：冷適應(yīng)不僅能使棕色脂肪線粒體內(nèi)膜UCP含量增加，而且能使其活性增加。