There was quiet some media echo in 2015 when publishing the article “Dogs can discriminate emotional expressions in human faces” (https://www.cell.com/current-biology/fulltext/S0960-9822(14)01693-5). The study was conducted at the Clever Dog Lab at the University of Veterinary Medicine Vienna, Austria. For the first time, we were able to prove that dogs are able to distinguish between human emotional faces by using their memory of how an emotional face looks like. There were several hundreds of articles all around the world (Australia, Austria, Belgium, Canada, China, Denmark, Germany, India, Indonesia, Ireland, Italy, Japan, Latvia, Lichtenstein, Malaysia, Netherlands, New Zealand, Pakistan, Qatar, Russian Federation, South Africa, Spain, Switzerland, Taiwan, Turkey, United Arab Emirates, United Kingdom, United States). Find here a selection of some articles in different languages:

Dogs know that smile on your face – Science Daily, USA

Dogs Can Tell Happy or Angry Human Faces – Scientific American, USA

Dogs CAN tell the difference between our happy and angry faces – and here’s proof – Mirror News, UK

If you’re happy and you know it…so does your dog – Global News, Canada

Your Dog loves Happiness on your Face – The Hindu, India

Hunde koennen menschliche Gesichtsausdrücke lesen – Spiegel Wissenschaft, Deutschland

Hunde koennen menschliche Mimik unterscheiden – Focus Wissen, Deutschland

Hunde erkennen wenn wir wütend sind – 20 Minuten, Schweiz

Hunde lesen in unseren Gesichtern – Der Standard, Österreich

Hunde kender forskel pa menneskers humor – Videnskab, Denmark

Il tuo cane sa come stai – National Geographic Italia

狗兒分辨人類喜怒 半張臉就看得出來 – Chinese Daily

研究:科學首度證明 狗能秒懂人類的喜怒情緒 – Ettoday, Taiwan

Then, in 2016 there was excitement about the follow-up study “Dogs recognize dog and human emotions” (https://royalsocietypublishing.org/doi/10.1098/rsbl.2015.0883) carried out in Lincoln. It could be shown that dogs can combine emotional information of different sense, namely vision and hearing, showing that dogs have a mental representation of positive and negative emotional states.

A man’s best friend: Study shows dogs can recognize human emotions – Science Daily, USA

Dogs can read human emotions, study finds – The Telegraph, UK

How does your dogs’s range of emotion compare to yours? – The Forbes, USA

Another interesting study with media echo was conducted in Lincoln in 2017. The study with the titel “Mouth-licking by dogs as a response to emotional stimuli” (https://www.sciencedirect.com/science/article/pii/S0376635717303005) could show that dogs respond with mouth-licking upon looking at angry human faces, suggesting that they not only have a functional understanding of the emotional state displayed but also that dogs use the visual display of mouth-licking to possibly facilitate dog-human communication.

Dogs mouth-lick to communicate with angry humans – Science Daily, USA