Birds, the warm-blooded and feathered vertebrates, are being used to put romantic partners to the test. A relationship experiment dubbed the "bird theory" is making the rounds on social media. It ...

One of the latest relationship tests to go viral is the “bird theory,” racking up millions of views on social media. It’s based on a theory developed by couples researcher John Gottman about the ...

“Oh my gosh, I forgot to tell you on the phone. I saw a bird today,” Brooke Phillips chirped to her husband, Donavon. She was secretly recording their interaction as he walked around their home in his ...