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Discussion Starter #1
At first I had no worries about it, thought it was just a badly placed birthmark but I wanted to make sure that's what it is. I've never seen moles on rats but that's what this kind of looks like. I know probably no one wants to examine Bert's private parts but please tell me what you think?





I lifted up his tail for a better view in a couple of those. What do you think it is? Just pigment or a mole or what?
 

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From some reason, hairless rats get a dark spot on their scrotum. No one's sure why, but it's perfectly fine and common :)
 

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Wow! I had no clue. In many ways hairless rats are like a whole new animal to me, so many different things to know about.
 
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