julietvanree posted a photo:

This is a brindle argente winter white hamster. Normally argente doesn't occur in winter white hamsters, thus this is a hybrid color. It is also has two genes for black. In the case of brindle the genetic make up (in color in this case) of the individual cells differs. It is a form of mosaicism. (but not germeline, so it doesn't pass on to the babies). So some cells display as black colored and other ones as argente colored. The same happened with the eye color, black hamsters have black eyes and argente hamsters have red eyes. This is why one eye is red and one eye is black.

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Brindle argente hamster (odd eyed)

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