I am very new to skull cleaning and have a question about the pig skull I just took out of the beetle tank. It appears to be damaged and I'm wondering if the damage is caused by something I did. I noticed the jaw was a little bit shattered as I was removing some of the flesh but figured I had just been too rough with it. I did not notice the damage shown in the picture until after I removed it from the beetle tank. I'm not sure what I could have done that would have caused this? There was another piece of bone fragment that came off of the area that I will try to glue back on. Thank you for any information you can provide.