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Last word

New ÒÁÈ˾þÃ's popular Last Word series gives readers the opportunity to answer each other's questions about everyday science phenomena, from the shape of scones to the evolutionary history of toenails. To answer a question or ask a new one, email lastword@newscientist.com

BG2B51 Back of man wearing a set of large false ears for a joke

Last Word

What part do my ears or auditory system play when I think of a tune?

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Leopard gecko lizards on the rock, cute lizards that are easy to care for, eublepharis macularius, animal closeup; Shutterstock ID 2551815383; purchase_order: -; job: -; client: -; other: -

Last Word

Which animals can recognise individual people? Part 3

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MB9M93 Monster Truck Jumping Mid Air

Last Word

What are the pros and cons of using carbon dioxide in tyres?

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3BHN5M7 A woman holds a sign that reads Greed is not a virtue during a protest across the street from Florida Congresswoman Maria Elvira Salazar's Office.

Last Word

This week’s new questions

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Issue no. 3572 published 6 December 2025

New ÒÁÈ˾þà issue 3572 cover
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