奇灵厄姆牛在一年中都可以生育，而不像其他英国的哺乳动物那样只在春季和夏季繁育。

The Chillinghams can give birth all year, not just spring and summer like most U. K. mammals.

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多亏了达尔文的呼吁，奇灵厄姆牛的记录持续了150年，如今的分析发现这种牛对气候变化做出了生育反应，只不过在冬季出生的牛犊死亡率也提高了。

Thanks to Darwin, records on Chillingham cattle go back 150 years, and show a breeding response to climate change resulting in more winter calf deaths.

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诺森伯兰郡奇灵厄姆的牛曾经被人驯养，但是现在它们自由生活。

Northumberland's Chillingham cattle were once domesticated, but now roam free.

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