It was a strange sight that had passers-by gawking in Vancouver: a woman slowly undulating with four extra appendages and complex pink body paint, and a second woman doing back bends with her right foot — painted to look like a giraffe's head — raised high into the air.

It was a publicity stunt pulled by Science World to draw attention to its Body Worlds: Animal Inside Out exhibit, which ends March 28.

Pamela Saunders with Science World seemed pleased with the reaction from onlookers, though it wasn't clear they knew why the models were there looking like animals.

"A lot of like, 'Wow what's going on? This is crazy. What is that?'" Saunders said of the public response to the stunt, as people took out their phones to snap photos.

The complex makeup and costumes took at least five hours to complete. Models Natalie Kunz and Teghan Fedor then had to take the SkyTrain to Georgia Street in Vancouver.

"It actually went pretty quick, I was just really cold the whole time. Other than that it was really fun," said Kunz, who played the role of octopus. 

She said her role may have been a little easier than Fedor's, as Fedor had to arch into continuous back bends to raise her leg up as the giraffe's neck.

Kunz quickly assumed her role as octopus once the display began.

"I don't know, I just like try to move, to try to be like I'm in water," she said of her undulating movement. "I don't know, I didn't really know what it was like to be an octopus at first, but then I just started moving around and it just comes naturally, I guess."

Saunders didn't seem bothered that the Science World exhibit is all about revealing the insides of animals, while Thursday's display merely showed the outsides painted onto humans.

"Today we're out just to have some fun," she said. "Come to the exhibit and you get to see something different."

Body Worlds animal inside out bull

An example of the actual Animal Inside Out exhibit: the bull is the heaviest inside-out animal on display. (Danny Globerman/CBC)