code/modules/surgery/organs/external/tails.dm 
| /obj/item/organ/tail | Tail parent, it doesn't do very much. |
|---|---|
| /datum/bodypart_overlay/mutant/tail | Tail parent type, with wagging functionality |
| /datum/bodypart_overlay/mutant/tail/cat | Cat tail bodypart overlay |
| /datum/bodypart_overlay/mutant/tail/monkey | Monkey tail bodypart overlay |
| /datum/bodypart_overlay/mutant/tail/lizard | Lizard tail bodypart overlay datum |
| /datum/bodypart_overlay/mutant/tail_spines | Bodypart overlay for tail spines. Handled by the tail - has no actual organ associated. |