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Your retina has 256 identifying features

HERE’S THE INTERESTING PART

Your fingerprint is actually old news when it comes to biological security. While a human fingerprint only has about 40 unique characteristics, the complex network of blood vessels in your retina contains 256 unique markers. This is exactly why futuristic sci-fi movies always feature eye-scanners to protect the incredibly dangerous secret lab.

Your retina has 256 identifying features
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