Frogs reveal mechanism that determines viability of hybrids

Why are some hybrids viable and others not? It is known that this depends on the father species and the mother species. New research in two related frog species shows the influence of mother and father species: One hybrid ...

Research shows negative effects of half-siblings

Adolescents who have half-siblings with a different father are more likely to have used drugs and had sex by age 15 than those who have only full siblings. That's according to new research from Karen Benjamin Guzzo, an assistant ...

When Mom Dates, Dad Stops Visiting His Kids

New research from the Journal of Marriage and Family shows that children born outside of marriage are less likely to be visited by their father when the mother is involved in a new romantic relationship. Many children born ...