The landmass of Eurasia, being the largest of the continents, has produced the largest number of these species, including the family that includes sheep, goats, and cattle.

欧亚大陆上——世界上最大的大陆——哺育这类物种最多，包括涵盖绵羊、山羊和牛。

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Prions cause a number of fatal diseases such as mad cow disease in cattle, scrapie in sheep and kuru and Creutzfeldt-Jakob disease (CJD) in humans.

朊病毒是一种畸形的蛋白质，导致一些致命的疾病：如疯牛病，羊痒病，人类库鲁和克雅氏病(CJD, vCJD)。

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Sheep can be seen everywhere and the great number of them is very wonderful.

羊群遍地可见，数量之大，真是令人惊叹。翵。

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Land use has also changed over the last 10 years including a big fall in the number of sheep grazing the land.

BBC: Snowdon getting 'warmer and wetter' says 15-year survey

But after reading a countryside magazine he hit on the idea of joining the growing number of farmers forgoing the traditional sheep and dairy herds, in favour of alpacas.

BBC: Banker backs alpaca flock

He said there was no exact figure for the number of stock lost but there would probably be thousands of lambs and sheep in England and Wales.

BBC: Animal snow death burial rules eased in parts of Wales