Did you know? Your dog's pupil isn't really made of black pigment as it may seem. That's just an…

Adrienne Farricelli

Did you know? Your dog's pupil isn't really made of black pigment as it may seem. That's just an optical illusion! In reality, a the pupil is a black hole and appears black because of the presence of special light absorbing pigments located in the interior portions of the eye.

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