It's to enhance their hearing. If they hear a noise that might be interesting enough to investigate, they'll usually prick up their ears so they can locate the direction the sound came from.
NEVER pierce a dog's ear.
Ear fungi
Becasue your dog is a purebred.
Take the dog to the vet
It depends on what type of dog it is.
Yes, the Venus Flytrap does have pricks but only around its mouth.
a dog
There are more blood vessels located in the ear
Kicking Against the Pricks was created on 1986-08-18.
Take the dog to the Vet...
Ears are fast?it is faster than that of humans.
Maybe your dog has been non stop itching there ear or even its ear is infected a little