what is this

  1. E

    Help! What is this?

    I found this whilst cleaning out my two boars. It’s pretty hard, but a bit sticky on the outside. What is it?
  2. S

    Mysterious Marks

    I have 2 Male guinea pigs and we were just checking one to make sure he doesnt have any bumps. And as we were checking him (Charlie) and we found these 2 marks next to his back legs. Does anyone know what these are?
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