Wikipedia is kinda gross sometimes. Iffin you go to these wikipedia links you will see some disturbing pics. I know there is much worse out there. These are two that I just happened to come across in the past 24 hours.
Many species of whale have an annual buildup of earwax, adding one, two, or four layers (depending upon the species) each year. Similar to the incremental dating method of dendrochronology for trees, the number of layers can be counted to determine the age of the whale after its death.
anal glands had to research this one cuz Fuggles has been dragging her ass on the carpet lately. I find it very entertaining, T thinks it is gross.