I was wondering if 2 male mice will ever mate with each other if they are left alone in a tank. I have two mice in a tank together, a white and a brown one. They are fairly young and the pet store told me that the white one was female and the brown a male. Yesterday I was watching the restless white one run and run in the wheel when the brown one came out and the white one mounted it. Could they both be males or is it most likely that the pet store sexed them totally wrong? I know I just didn't get them backwards because I got them at separate times. Also the white one looks a few weeks older than the brown. thanks for any of the input.
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1.0 ball python (vakker)
0.1 dogs
2.1 cockatiels
1.1 chinchillas
Coming soon... 1.1 corn snakes
0.1 axanthic ball python


