'Is the doggy angry?' Research hints children under 5 can easily confuse dog emotions
- Written by Melissa Starling, Postdoctoral researcher, University of Sydney

To most of us, a dog showing its teeth is a pretty clear signal of threat. In 1872, Charles Darwin first suggested animals showed emotions similar to ours in their body language, and we might be able to use this to better understand their behaviour and motivations.
There is perhaps no better species for investigating this idea than the...