Evolution has largely deprived us of our ability to swivel our ears, but those vestigial muscles still activate when we listen intently, according to new research.

Sometimes it's a genetic condition. The visible part of your ear is called the auricle. A baby typically grows it during the sixth week of pregnancy. A preauricular pit forms when the auricle ...

Study first author Andreas Schröer, of Saarland University in Germany, said: "There are three large muscles which connect the auricle to the skull and scalp and are important for ear wiggling.