Archer is an Arctic fox who lives with his owner, Kristina Shafer, in her Michigan home. He “laughs” on command, and in this video is responding from a chuckle from Shafer’s boyfriend.
Shafer posted this video on Vine, where it has been viewed more than 29 million times in three days. The clip has also been shared on Facebook approximately 677,000 times in the last 24 hours.
Reportedly this is typical behavior for Archer when he’s sleepy. Commenting on YouTube, a behavioral biologist suggests this is most likely a stress reaction. He adds that smiling or laughing is rare in the animal kingdom and for most species simply does not exist.
Here’s a longer version: