High heels are impractical. They don’t allow running and other sports. The same goes for long fingernails.
Doing impractical things is classic signaling. The less practical the stronger the signal.
Sexual dimorphism refers to physical features, not to abilities as such.
High heels are impractical. They don’t allow running and other sports. The same goes for long fingernails.
Doing impractical things is classic signaling. The less practical the stronger the signal.
Sexual dimorphism refers to physical features, not to abilities as such.