A pedigree and inbreeding checking tool
This tool is made by Layna and Rosehill on Magistream. It is not yet complete, but works for smaller needs.
Check Pedigree
To check what kind of a pedigree your creature has. Displays only a few (7, at the moment) generations up at a time, but will do inbreeding-check over all of them and displays the creature's generation with the whole pedigree taken into account. Please note that the tool cannot check lineages past hidden creatures so if the pedigree has hidden creatures the displayed results may not be accurate.
Check Relations
To check if two creatures will produce inbred offspring. Same display-rules apply as with the pedigree tool.