I just got 130 frozen mice and 5 rats from a breeder and while picking through them to sort them for size, I noticed many had "bald spots" and "wounds".

He said, to his knowledge, they aren't ex-lab mice, he'd never had problems using them and they came from someplace like "Mice Direct" or somesuch name.

They look weird, though.

Can y'all take a look and tell me what you think caused the hairlessness?



How would I know if they'd gotten thawed out and refrozen or were freezer burned?

I have absolutely no sense of smell so 'sniff tests' are hopeless.