It doesn't work that way. Grammatical gender is 99.9% arbitrary and mostly has nothing to do with biological sex. It's just a category label. Only humans, common pets, and common farm animals have masculine and feminine forms. All other animals have one grammatical gender for the whole species.
They're just making a reference to the "infinite monkey theorem".
Grammatical gender has almost nothing to do with biological sex. "Masculine" and "feminine" are just category labels.
Some animals (mostly the familiar ones we keep as pets or find useful on a farm) can be masculine or feminine according to their actual biological sex. But most animals are just grammatically one gender, regardless of their biological sex.
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