Nature's "default setting" is to make every mammal a female in its external anatomy.

Name: Nature's "default setting" is to make every mammal a female in its external anatomy.
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Quizplus · Accepted Answer

The statement is true. During fetal development, all mammalian embryos begin with female reproductive organs. It is only through the presence of certain hormones that male genitalia form. Thus, female anatomy can be considered the "default setting" for all mammals.

Nature's "Default Setting" Is to Make Every Mammal a Female