A robust animal, it is now found on every continent, with an estimated worldwide population of around 40 million. (sciencedaily.com)
The authors will follow up the study with additional worldwide populations to better understand the mutations and these genes as a genetic marker for disease risk. (sciencedaily.com)
But surely, intensive livestock farming has given us a much higher worldwide population of cows than would otherwise exist. (dotearth.blogs.nytimes.com)