Care always needs to be taken around unknown dogs as any can become aggressive.
Main signs to look out for in a dog's body language:
- ears up
- stiff body
- hair up on the back of the neck
- staring at the perceived threat
- barking and growling
- lunging or baring teeth.
Some dogs may also make themselves look smaller or display submissive or timid behaviour.
Dogs become aggressive for a number of reasons including:
- fear
- territory protection
- food and toy guarding
- pain or sickness
- anxiety
- protection of litters.