Rabbit Or Raven? Viral Video Will Make You Question Your Eyes

Forget the dress colour debate. Forget the 'beach or stormy sky' optical illusion. What the Internet really wants to know these days is whether the animal being petted in a viral video is a rabbit or a raven.

On Sunday, Daniel Quintana, a senior researcher in biological psychiatry at the University of Oslo in Norway, shared a video that has gone massively viral on Twitter. The video features a black rabbit... or a raven - the Internet can't decide which. It has been viewed over 3.3 million times and triggered a fierce debate on whether the animal is a bunny or a bird.

Take a look at the video below:

Rabbits love getting stroked on their nose pic.twitter.com/aYOZGAY6kP

— Dan Quintana ???? (@dsquintana) August 18, 2019

Twitter users are now locked in a debate about what the animal is. Take a look at some of the reactions:

I see a raven. Anyone else?

— TravellingMan (@SJJB55) August 19, 2019

Sounds like theology based on Looney Tunes. pic.twitter.com/l7eo7i5dma

— Derek McNeil (@Schfooge) August 20, 2019

Okay first of all, I'm obsessed with this. Second, is this your rabbit? If So, please post more ???????? content???????? pic.twitter.com/o59gRKY3kX

— Chelsea Parlett-Pelleriti (@ChelseaParlett) August 18, 2019

I don't know... The beak seems too curved for a crow. But if it is, I would definitely love to have a pet crow like that!

— Cristina Zogmaister (@czogmaister) August 18, 2019

To some, the video was also reminiscent of the famous bunny/duck optical illusion

The optical illusion came to life, it's official, someone has a magic pen!!! pic.twitter.com/EDX84LTzT8

— Keisha Renee (@Broadwaybandit5) August 20, 2019

According to CNet, Mr Quintana himself wasn't fooled by the illusion. To him, it was clear that the video featured a bird.

"I thought it was fairly clear that the video was of a bird... as you can see the translucent nictitating membrane sweep across the eye horizontally (rabbits don't have membranes like this) and the positioning of the 'ears' are a little strange," he said.

"I made the rabbit comment to prime readers into thinking it was actually a rabbit, to give it a fighting chance at least," he said. "When you only see the beak in your peripheral vision, it really seems like they're ears. Without this misleading cue, I thought most people would have seen a bird."

Let us know what you think of the video using the comments section.