"Bird theory," a hypothetical making the rounds on social media, is being used to put relationships to the test. Here's what it means.

Do you know what ‘ax2+bx+c=0’ is? Well, it’s the quadratic equation, which, believe it or not, is used in multiple fields in ...

The bird theory test that couples are taking and sharing on social media has a solid basis in relationship theory. Find out ...

"Look, a bird!" - a mundane sentence that's currently becoming a viral relationship test on TikTok. The so-called "Bird ...