14:11, Mon, Sep 29, 2025 Updated: 14:14, Mon, Sep 29, 2025 While small dogs are often notorious for being more aggressive than some larger breeds, an ethologist has suggested that the owners could be ...

Some dogs have aggression in their DNA, while others are born to be placid and docile. Dogs come in all shapes and sizes - the UK Kennel Club recognises 221 different pedigree dogs, from Affenpinscher ...