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EPISODE · Oct 24, 2025 · 49 MIN

How does biometric data work?

from Unexpected Elements · host BBC World Service

Europe has a new entry/exit system based on biometric data. But what exactly is the science behind biometric data, how can we ensure it’s used responsibly, and can it be cracked?We also look at how some animals use dung as biometric data with Dr. Adrian Shrader, how your walk can be used to ID you from Professor Mark Nixon, and why gold has its own special measurement. All that plus many more Unexpected Elements.Presenter: Marnie Chesterton Producers: Margaret Sessa-Hawkins with Lucy Davies and Robbie Wojciechowski

Episode metadata supplied by the publisher feed · Published Oct 24, 2025

What this episode covers

Europe has a new entry/exit system based on biometric data. But what exactly is the science behind biometric data, how can we ensure it’s used responsibly, and can it be cracked?We also look at how some animals use dung as biometric data with Dr. Adrian Shrader, how your walk can be used to ID you from Professor Mark Nixon, and why gold has its own special measurement. All that plus many more Unexpected Elements.Presenter: Marnie Chesterton Producers: Margaret Sessa-Hawkins with Lucy Davies and Robbie Wojciechowski

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How long is this episode of Unexpected Elements?

This episode is 49 minutes long.

When was this Unexpected Elements episode published?

This episode was published on October 24, 2025.

What is this episode about?

Europe has a new entry/exit system based on biometric data. But what exactly is the science behind biometric data, how can we ensure it’s used responsibly, and can it be cracked?We also look at how some animals use dung as biometric data with Dr....

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