A video of a rescued mixed breed dog smiling is taking over TikTok. Can dogs really smile or are proud dog owners just imagining it? Dog trainer Marcel Wunderlich says dogs actually show facial expressions that experts describe as laughing or grinning.

However, caution is advised with “smiling” dogs that like to be shared on social media, he says. The most important appeasement signals that every dog owner should know can be found here. For more information on Landtiere.de's partner, Dogs Magazine, visit the company's website here and follow us on Twitter @Landtiere and on Facebook @DogsMagazines. Back to the page you came from. Click here for more information about Dogs Magazine and its partner, Landtieri.de. The latest issue of Dogs Magazine is out now and is available on Amazon Kindle, iPad, and the Kindle store. To order a copy of the latest issue, visit http://www.amazon.co.uk/Dogs-Magazine-Back-to-the-page-of-a-free-limited-edition-edition.