In postmenopausal osteoporosis, decreased estrogen levels lead to increased bone resorption.
在绝经后骨质疏松中,激素的减少引发了骨吸收的增加。
Dr. Nattrass said the study could point to some answers. It found that postmenopausal killer whales provided the biggest boost to their grandcalves' chances of survival, beyond that provided by grandmother killer whales that were still breeding.
纳特拉斯博士认为这项研究可能会指向一些答案。 研究发现,绝经后的虎鲸可以最大程度提升孙辈的存活率,发挥的作用超过那些仍在繁殖期的祖母虎鲸。
Dr. Nattrass said postmenopausal killer whales are able to guide their families to salmon when it's scarce, using stores of " ecological knowledge" gained over decades of life experience. Without that knowledge, Dr. Nattrass said, the grandcalves could die.
纳特拉斯博士说绝经后的虎鲸能够利用几十年生活经验中积累的" 生态知识" ,在鲑鱼稀缺的时候,指导家人捕食鲑鱼。 如果没有这些知识,虎鲸幼崽很可能难以生存。