2024年の研究を紹介します。ハクジラは閉経することで寿命を延ばし、子や孫と生殖期間が被らず 世代間の助け合いを増やすことを発見しました。
We further show that menopause results in females increasing their opportunity for intergenerational help by increasing their lifespan overlap with their grandoffspring and offspring without increasing their reproductive overlap with their daughters.
The evolution of menopause in toothed whales
