I love reading about all the history behind the dog-human relationship, and Wikipedia lists off several interesting archaeological finds. This one was my favourite:
26,000 years ago – 50-metre trail of footprints made by a boy of about ten years of age alongside those of a large canid. The size and position of the canid’s shortened middle toe in relation to its pads indicates a dog rather than a wolf. The footprints have been dated by soot deposited from the torch the child was carrying. The cave is famous for its cave paintings.
Eileen shows off how she has trained her three dogs to release on different words, so that she can choose to release one dog, but not the other two.