欧洲野牛与美洲野牛是如此的相似以致它两在一起时很难区分。
1·Geigl and her colleagues looked at 3200-year-old fossil bones belonging to a single individual of an extinct cattle species called an aurochs.
盖格尔和她的同事们研究了3200年前的骨头化石，这些骨头属于一种已经灭绝的叫做欧洲野牛的种类。
2·And now this is the only Russian nature reserve for aurochs.
现在这里是俄罗斯唯一的欧洲野牛自然保护区。
3·Aurochs are the heaviest and the biggest land mammals in all European continent.
欧洲野牛是整个欧洲大陆最大也最重的哺乳动物。