I've macerated dozens of skulls and have never had this problem but - today I was changing the water in my maceration buckets and noticed that there were a couple of broken teeth on an otter skull and a coyote skull. The teeth looked like they had just cracked right in half, and one tooth from the coyote skull was in at least three pieces. They were out of the socket. The teeth on these skulls were perfectly fine before I put them in the rot bucket (as far as I could tell). I have not done anything differently with the way I macerate - I use 5-gallon buckets with a bucket heater and a thermostat, and each skull is in its own ziploc bag and there are maybe 5 skulls in each bucket. The water temperature is around 95 degrees. I did not handle the skulls roughly and I am always trying to be careful when I change the water so as not to knock the skulls around. The only thing I have changed is the length of time I am macerating. I am trying to see if by macerating longer, I can cut down on the degreasing time. But I would think that would be easier on the skull/teeth because the water is not so hot? (By the way it seems to be working, some of the skulls have been "clean" for a week now but every few days I dump out a lot of greasy yellow water!) Any idea what may have caused this? The skulls were thawed when I initially put them into the rot bucket, and the water started out cold so I don't think it was a water temperature change thing. Is it just something that happens with some skulls because of the way that animal lived (maybe it was in poor condition when it was alive?) I know I can repair the teeth but I am just curious if anyone has any ideas or if this has happened to others. Thanks!