https://www.latrobe.edu.au/news/articles/2023/release/ear-shape-as-accurate-as-fingerprints
This study is the first to attempt to validate the method across a number of ethnic groups from six different countries (Brazil, India, Japan, Russia, South Africa and Turkey) using a sample of 2,225 photographs of the external human ear (1,134 left and 1,091 right ears) from 1,411 individuals (633 females and 778 males).
The study found that there is a low probability (< 0.0007) of finding two individuals with the exact same code as assessed by Cameriere's ear identification method.
“In this study, we demonstrated that the human ear may be a powerful tool to distinguish not only people in a random population but also genetically identical twins,” Dr Balla said.
“It may also mean that analysis of human ears could be used as an alternative to facial recognition systems.”
you mean Former Vice President Joe Robinette Biden?