No. The switching of genders in an animal is limited to fish and other ocean dwellers like shrimp.
Many species of frog, if exposed to chemical fertilizers like atrazine, can successfully switch genders to the point that they are able to reproduce. However, the frogs born of this type of reproduction will always be male, because while the sex organs and hormones of the transgender frog mimic a females, the DNA of both parents is still male. Keep in mind though that this is not a naturally occuring metamorphosis, it is the side effect of exposure to a dangerous chemical.
An article on National Geographic’s website states that polychlorinated biphenyls can cause similar sexual changes in female polar bears, though nowhere near the same extent as can be seen in frogs.
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