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What determines whether an axolotl will grow up to be male or female?

Axolotls have genetic sex-determination - a locus on an axolotl chromosome determines whether an axolotl is male or female.

In salamanders, the sex determining mechanism is referred to as ZZ/ZW and the heterogametic sex is female.

Fun Facts

What’s the difference between a newt and an axolotl?

A newt is a salamander but not all salamanders are newts.

There are 9 different families of salamanders and the family Salimandridae contains all of the various newt species.

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