Humans lose yet another line of defense/distinction:

Researchers at Harvard University have found that humans aren’t the only ones who can groove to a beat — some other species can dance, too. The capability was previously believed to be specific to humans. The research team found that only species that can mimic sound seem to be able to keep a beat, implying an evolutionary link between the two capacities.

...Schachner and her colleagues closely studied Alex, a well-known African grey parrot who passed away shortly after the study, and Snowball, a sulphur-crested cockatoo whose humanlike dancing behavior has led to online fame.

“Our analyses showed that these birds’ movements were more lined up with the musical beat than we’d expect by chance,” says Schachner. “We found strong evidence that they were synchronizing with the beat, something that has not been seen before in other species.”