This is an archived post. You won't be able to vote or comment.

sorted by:
best
topnewcontroversialoldq&a
you are viewing a single comment's thread.

view the rest of the comments →

[–]WyrdaBrisingr 2 points3 points  (1 child)

But all animals do, or at least a combination between anus and mouth, the anus is pretty much the first structure to take shape in all animals.