Hornlessness (known as “polled”) is a trait common in beef cattle, but rare in dairy cattle. Conventional breeding could theoretically create hornless dairy cattle, but it would take decades, with ...

A study into a fossilized skull found at Badlands National Park, which eventually led to the novel findings, suggested that all of these deer were hornless and roughly the size of a modern ...

Four of the calves also inherited a bit of the plasmid that had ferried the hornless gene, called POLLED, into the bull’s genome. The unintended presence of foreign DNA has derailed their route to ...