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Identical twins aren't really identical: They can have "typos" in their DNA that make them unique
You can also be identified by your unique ear shape, iris pattern and tongue texture
Move over fingerprints. From your ears to your toes, there are many body parts that make you uniquely special. And all of them are being examined as a way to identify you from others in a crowd.
Do your ears hang low? Wobble to and fro?
It turns out the ridges, bumps and shape of your outer ear are so unique that it may soon be one of the best ways to identify you. According to University of Southampton biometrics expert Mark Nixon, studies have shown up to 99.6% accuracy when ears were scanned using computer software that recreates their position, scale and rotation. That’s the same accuracy as fingerprints.
Your ear is fully shaped when you are born, and changes little after about age 10. It does grow larger and begin to sag as you age because of the effects of gravity, but that is a measurable effect; in fact it has been calculated to be just