Two lion brothers rubbing heads in sign of affection and bonding© RichartPhotos/Shutterstock.com Scientists have recorded same-sex behavior across many animal groups ...

In the natural world -- where predators pounce, prey flee, and group members feed and sleep in solidarity -- animal behavior is glorious in its variety. Now, new research suggests there may be an ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Homosexual behavior is much more common across the animal kingdom than we first thought, new research has found.

A tiger walks the same worn groove along the edge of its exhibit, like a broken record. A parrot methodically plucks out its own feathers until bare skin shows through. To a casual visitor, these can ...

Many people, including researchers and people who are simply interested in animal behavior, have written off queer sexual behavior in nonhuman animals for any number of reasons, including that it is ...

OMAHA’S HENRY DOORLY ZOO, KEEP YOUR EYES OPEN FOR SENSORY OBJECTS INSIDE EXHIBITS. THOSE OBJECTS KEEP ANIMALS ENGAGED, AND KETV NEWSWATCH SEVEN’S ANNA BEHNING TAKES US THERE. SO CAITLIN, AS THE ...

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

Evolutionary approach to animal behavior -- Diversity of behavior -- Genetics of behavior -- Development of behavior -- Nerve cells and behavior -- Organization of behavior -- Evolution of behavior: ...