骡子不能生育,这是众所周知的。然而,中国科学院遗传研究所的科研人员却发现一匹能下驹的骡子,从而使我国成为世界上第一个发现存活的骡与驴的杂交小驹的国家。 在遗传研究所的饲养场里,笔者看到这匹骡子生下的小母驹十分健壮,从它的尾巴,背上的十字纹,深灰色的毛色,不难看出是驴的特征,而那两只斜竖的大耳,灰黑的唇部,又显示出骡子的特 Mules are not fertile, it is well known. However, researchers at the Institute of Genetics of the Chinese Academy of Sciences found a mule capable of foaming, making our country the first country in the world to find a crossbreed foal with mules and donkeys. In the feedlot of the Institute of Genetics, I noticed that the mule gave birth to a young mare that was very robust. It was not hard to see the characteristics of the donkey from its tail, the cross pattern on its back, and its dark gray coat color. Two oblique big ears, gray lips, but also shows the special mule