一項研究觀察小藍企鵝 12 個繁殖季節，發現這些企鵝的「離婚率」很高。大多數已配對的企鵝在每個繁殖季節都會繼續一起，但如果上一個繁殖季節不成功，18-50％會尋找新的伴侶。這項研究顯示，社會動態對整個族群是一個重要的關鍵，因為當離婚率較低時，育鶵成功率亦會較高。

A research on little blue penguins over 12 breeding seasons has discovered these penguins have high ‘divorce rates’. most paired penguins will stay together again each breeding season, but 18-50% of them will find new partners if the previous breeding season was not successful. this study shows social dynamics is an important key because when the divorce rate is low, the hatching and fledging success rate will be higher.

https://www.sciencealert.com/shock-discovery-reveals-penguins-dont-mate-for-life-after-all