Love makes us feel warm and mushy, but the sweet sting of Cupid's arrow makes a compelling chemistry lesson, too. Research into animal mating and human courtship provides clues to an eternal mystery: what's the purpose of love? Learn lessons from the family values of field mice, and affectionate same-sex penguin pairs. Plus: Darwin's take on speed dating, and the science of smooching. Guests Helen Fisher - Anthropologist, Rutgers University Sarah Woodley - Biologist, Duquesne University Skyler Place - Doctoral Student, Indiana University's Department of Psychological and Brain Sciences Larry Young - Neurobiologist, Emory University Marlene Zuk - Biologist, University of California, Riverside Descripción en español Learn more about your ad choices. Visit megaphone.fm/adchoices