When an animal looks in a mirror, does it realise that it is looking at itself? – this is really a question of self-awareness. So if any animals, apart from ourselves, do actually know this we then have to ask – Which, if any, animals successfully make this connection?
Sometimes it’s good to questions the assumed orthodoxy that we all seem to absorb by gradual osmosis from the culture and society we live and are brought up in. How do we know that fingerprints ARE unique?
Are you the same person you were 10 years ago ? … a not unreasonable question when you consider that the cells in your body are constantly being replaced and regenerated. For example during a typical lifetime, humans get through around 900 skins and about half a dozen skeletons.