Is your pup picking a fight with the hallway mirror? From sensory confusion to the famous "mirror test," discover the real ...

In the new experiment, roosters made fewer alarm calls, meant to warn peers of predators, when placed in front a mirror versus when standing near another rooster. Stefano Spaziani / picture alliance ...

A dog by the name of Harley has shown herself to be one smart puppy after seemingly deducing that she is looking at her own reflection in the mirror. In a video posted to TikTok under the handle ...

Cleaner wrasse have revealed a remarkable new side of fish intelligence. Marked with fake parasites, they used mirrors to inspect and remove the spots—far faster than seen in earlier tests. Even more ...