i can do it without raising my eyebrows but i am no where near rockin amigo's abilities of doing them separately. apparently its the gene we share with horses that makes us do that but in most people that muscle is vestigial and over time has lost a lot of its tension.
I think it takes more talent to raise an eyebrow than to wiggle your ears. At least I know more people who can do the latter.
I can wiggle my ears. I use it to pull glasses up my nose when I wear my glasses, instead of pushing them with my finger. I can't raise either of my eyebrows, though, and I've tried several times with epic fail.
I can wiggle my ears, its how I check the seal of my IEM's. I can also raise both eyebrows, curl my tongue into 1,2 or 3 loops, do the vulcan hand sign on both hands, do the elvis sneer with both sides of my mouth, and throw up TWO "westsiiide!" W's with my hands at once. In your FACE, Erik!