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Why are fingerprints unique?

This week, Tom Crawford put Helen's question under the magnifying glass to ... unique and if so, whether the same applies to toeprints? Tom - The movies say that if your fingerprints are found at ...

An ant walking

Can ants feel pain?

Tom Crawford went crawling around for the answer with York ... but feeling no pain is what’s known as nociception. Tom - I find it hard to separate the idea of feeling pain and ... in which they experience pain, but without nociception. Tom - So we know that ants can sense harm and react to it - ...