A couple of sea otters in Vancouver have captured international attention simply by holding each other's paws as they float in the water.
The animals live at the Vancouver Aquarium and go by the names of Nyack and Milo.
Aquarium visitors just can't get enough of them. "I think they're like little swimming teddy bears," said one woman.
While it looks like a gesture of love, it's actually a matter of survival.
"In the wild if you've got some rough water, they could easily drift away from each other, and the social grouping for sea otters is very important," said Brian Sheehan, who works at the Vancouver Aquarium.
The otters are not only winning over aquarium visitors, but also visitors to the YouTube website.
Five years ago a student in Canada videotaped the couple, and just two weeks ago posted it on the site.
Already, more than one and a half million people have taken a look at the posting, and it's shot up to be the web site's top-rated animal video of all time.
The video is now popping up on a half million other websites.
Nyac and Milo are now stars, but Nyac has already made headlines.
Back in April of 1989, she was one of the few sea otters to survive the Exxon Valdez oil spill in Alaska. She was cleaned up and sent to Vancouver, where she's lived ever since.
The aquarium is hoping the publicity surrounding the animals will raise awareness that they're actually endangered.