Problem: The research on secondary fathers in the Bari group shows: Group of answer choices Once a woman has a secondary father for one of her children, she is pushed out of the group because she is using too many resources. Mothers were more likely to take on a secondary father when a previous child had died in infancy. A woman was more likely to have a miscarriage or stillbirth if she had both a husband and an additional mate contributing food. Thus, the help of the secondary father seems most important in childhood, not during pregnancy. The Bari actually have few secondary fathers, with only about 5% of pregnancies involving secondary fathers.