A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

Nonhuman primates like bonobos and chimpanzees might engage in same-sex sexual activities to strengthen bonds, particularly ...

Homosexual behavior in primates has a deep evolutionary basis and is more likely to occur in species that live in harsh ...

Bonobo evolution reveals bonding and group cohesion in response to threats, favoring paths to finding peace instead of ...

Biologists tend to look at the animal kingdom and try to categorize things in an organized fashion. But nature has a way of ...

More than 500 undergraduates at the University of Delaware took part in the 2024 Summer Scholars program, conducting in-depth research or creative work alongside faculty or graduate student mentors.

Decades of research with humans and other species indicate that males are more aggressive than females. But within the family ...

Scientists have long wondered whether evolution would follow the same path if history had a chance for a “do-over.” New research suggests that it does, when it comes to the brain and its regulation of ...