Lorenz studied instinctive behavior in animals , especially in greylag geese and jackdaws .

劳伦兹研究了动物的本能行为，重点研究了是灰鹅和寒鸦。

In greylag geese it is the male-male pair bonds that persist and remain stable from year to year .

在灰雁，雄性伴侣的连结是年复一年持续且依然稳定的。

The ethologist konrad lorenz described the sunken eyes and hunched posture of newly bereft graylag geese : " a greylag goose that has lost its partner shows all the symptoms described in young human children . "

行为学家康拉德洛伦茨（konradlorenz）描述新近失亲的灰鹅（graylaggeese）眼窝深陷并且驼背：“一只失去伙伴的灰鹅展现出了所有人类孩子体现的特征。”