The tag alias #72218 non_mammal_nipples -> non-mammal_nipples has been approved.
Reason: Same tag, one with hyphen and one with underscore.
Is consistent with other non_mammal* -> non-mammal* aliases.
There is also a pending alias #69672 for navels.
EDIT: The tag alias non_mammal_nipples -> non-mammal_nipples (forum #418435) has been approved by @slyroon.
Updated by auto moderator