The dog study is the latest into several species, including cows, horses, cats and sheep, which have shown that animals are far more self-aware than was thought.

关于狗的研究是最近才介入的，几类物种包括牛、马、猫和羊的研究已表明，动物具有自我意识，远远超过我们的想象。

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A practical model of walking machinery in imitation of oxen or horses is presented while a study of the walking machinery is made in regard to the principle, structure and performance.

对仿生物机械之一的仿牛或马等生物活动的步行机械的实用机型进行探讨，并从原理、结构及性能等对该机型的步行机进行研究。

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This experiment was carried out to study the haemal physiological and biological parameters of the Yanqi horses.

对幼龄和壮龄焉耆马血液生理生化指标进行了测定。

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Simpson provided the palaeontology with a classic study of the evolution of horses.

ECONOMIST: Obituary

Since Barbaro's injury, the Keeneland Association has hosted two summits on the "Welfare and Safety of the Racehorse" to study the reasons modern horses aren't racing as often as they used to.

WSJ: Derby Death Stirs Call for Change

At the 2011 Jockey Club Round Table in Saratoga Springs, New York, Michael Lamb and Dan Singer of McKinsey and Company presented the results of a study commissioned by the Jockey Club, which is the breed registry for Thoroughbred horses in this country, Canada, and Puerto Rico.

FORBES: Racing 101: Teaching People To Bet