帝企鹅：雄性帝企鹅为了呵护雌企鹅产下的蛋，会在冰冷的南极大陆呆上60天或更长时间，孵蛋时，雄企鹅将蛋放在两脚的蹼上并用毛绒绒的肚皮盖住。
Emperor penguin: A father Emperor penguin withstands the Antarctic cold for 60 days or more to protect his eggs, which he keeps on his feet, covered with afeatheredflap.
② 性母与性雌蚜和雄蚜的遗传关系都十分接近，说明同一性母既产性雌蚜，也产雄蚜；
Mother of mating forms had almost the same genetic relation to the mating female and male, suggesting that the mother of mating female also be the mother of male; 3.
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