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

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Same-sex sexual ...

Never underestimate the mind of a crow. Members of a family of birds that includes ravens, rooks, magpies, and jays, crows have been known to bend wire into hooks to retrieve food; drop nuts in a road ...

Microbes are everywhere, even inside of our bodies. The gut microbiome has been shown to have a powerful influence on biology, and can even affect the brain. Scientists have been learning more about ...

A study by Spanish researchers suggests same-sex sexual behavior among mammals − especially primates − is not only common and adaptive but supports social relationships and reduces conflict. Their ...

In the late 2000s and early 2010s, neurogeneticist Vivek Kumar, then a postdoctoral researcher at the University of Texas Southwestern Medical Center, screened thousands of randomly mutagenized mice.

What role does environmental settings play in behavior? This is what a recent study published in Scientific Reports hopes to address as an international team of researchers investigated behaviors ...

Because serotonin is one of the primary chemicals the brain uses to influence mood and behavior, it is also the most common target of psychiatric drugs. To improve those drugs and to invent better ...

Some of the foundational studies in the field were neither ethical by today’s standards nor replicable. But we can do better. Unfortunately for both the field and the dogs themselves, the truth is ...

I've been studying various aspects of animal behavior, especially in mammals, for many decades and have always felt uneasy about how cultural values have limited our true understanding of the dynamics ...