Scientists have recorded same-sex behavior across many animal groups, including mammals, birds, and reptiles. Still, the meaning of that behavior depends on the species and the context. Behavior that ...

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 ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Animals mating with the same sex is a common trait, having evolved so repeatedly in mammals that it is now thought to be ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Animal nervous systems may lose their adaptive edge with climate change. PM Images/DigitalVision via Getty Images Human-driven ...

During the height of the COVID pandemic, headline stories were peppered with photos of deserted streets from the world’s largest metropolises. Universities quickly began to resemble ghost towns, as ...

Humans and the changes we’ve brought to cities have led to the survival of bolder animals, and those bolder animals pass on ...

Antidepressants don’t just affect human libidos. New research shows that female starlings fed food spiked with the antidepressant fluxoxetine (Prozac), were less “attractive” to males and so less ...

Several years ago, Christian Rutz started to wonder whether he was giving his crows enough credit. Rutz, a biologist at the University of St. Andrews, in Scotland, and his team were capturing wild New ...