FSHD 150B1 Lecture Notes - Lecture 5: Paternal Care, Canine Tooth, Ingroups And Outgroups
Document Summary
Paternal care is present in some mammals, but very few live in a familt: paternal care: 5, family: 1% Degree of paternity confidence (male investment in parenting versus mating)- the higher paternity confidence, the more investment in parenting. Parenting (paternal care) enhances father"s fitness- care contributes to offspring survival and reproduction (ex. predator protection; provisioning offspring or mom; carrying offspring) Our close relatives: chimpanzees and bonobo (pygmy chimp) Variety of plant and animal foods opportunistically and as needed: chimpanzees: paternal care. Do they live in a family: yes, because mother has long-term relationships with biological offspring. Within group mate competition and paternal care. Given the high levels of within group male-male competition, aggression is created. Indirect care: mother"s health- males show less aggression towards mothers of their offspring. Direct care: social training- males play with their offspring. Less paternal confidence: bonobos: make love, not war. Reduce social tension and promote social bonds. Mothers care for young up to 8 years.