A basset hound, poodle (if you let the hair grow).
It depends on what dog you are talking about. There are dogs with short ears but most have ears bigger than those of humans.
Bassett Hounds
it depends on what dog you have- dogs with long hair will have it on their ears. Short haired dogs will have it on their necks.
proportionately the pappillion the German Shepard is second?
No, pig ears are a good chewing treat for dogs.
to sense when there enemy is coming so they can attack on him or run away.
cat ears and puppy dogs tails that is how long it takes to get to Argentina
Dogs
dogs and cats move their ears to hear from where the sound id comming.the ears of cats and dogs are out so when the sound waves hit the outside of the ears it rebounds back into the ears.
Dogs ears are pretty close to human ears. So the answer to your question is yes they can.
No, you do not "have to" crop any dogs ears.
None no dog has 44 ears.