And I think I'm going to take that bath I mentioned in the other thread.
During copulation, echidna penises operate on a part-time schedule: half the penis temporarily shuts down while the other two heads are responsible for fertilization.
The whale, as you might have guessed, has the world' s largest penis.
There may be a certificate or letter from a vet to prove that the cat has been neutered.
In cats — there is a variation but it can be tough to tell.
Next, locate the penis and its tip, or glans penis.