Sheep horns downsized by hunters' taste for trophies

Abstract

The horns of some bighorn sheep are getting smaller, because hunters are picking off the most impressive rams before they reach their breeding peak. A study of one sheep population in Canada shows that hunting can harm the gene pool of a species over just a few years. That means there should be tougher restrictions on what animals can be taken, says David… (More)
DOI: 10.1038/426595b

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