Dan Marvin grew up in the Big Bangs period of the 1980s. These days, he can be found in Michigan, once known for its woolly mammoths. He shares a hairbrush with his wife, son and d...view moreDan Marvin grew up in the Big Bangs period of the 1980s. These days, he can be found in Michigan, once known for its woolly mammoths. He shares a hairbrush with his wife, son and daughter. But not with their two dogs, even though they’re woollier than mammoths.view less