serratobialis were found caring for offspring
during a field trip to Trinidad, conducted in July 1999 by the second author.
I see 12-year-olds leaving the hospital with their new babies, often without clothes to wear and with no stable means of caring for offspring
. I see a lot of sexual abuse and violence in many communities.
Dr Ronald Lee noted that in some species, including humans, post-reproductive individuals continue to provide a valuable service by caring for offspring
-either as parents or grandparents.
Their choices may be based on a variety of factors: maturity of the males, dominance, physical attractiveness (as we saw in the case of the barn swallow), control of food and other resources, and also, as is seen again and again, the likelihood of help in caring for offspring