Mouse urine glows under florescent light.  Further, despite their propensity to spread disease and the like, surprisingly, mice are very clean animals.  They clean themselves regularly, not unlike cats, and they organize their homes with specific areas for storing food, going to the bathroom, sleeping, etc.

Another interesting mouse factoid is that the incisors in a mouse’s mouth never stop growing and can grow as much as five inches per year.  Because of this, mice like to gnaw on hard objects to grind their teeth down.

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