Subscribe now

Last word

New Scientist'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

an australopithecus, one of our ancestors; Shutterstock ID 790742188; purchase_order: -; job: -; client: -; other: -

Last Word

When did humans first start to sing? Part 2

Regulars

Male nose close up bottom view - hair in the nostrils; Shutterstock ID 1895123341; purchase_order: -; job: -; client: -; other: -

Last Word

I understand why we have two eyes and two ears – but why two nostrils?

Regulars

JAPAN. Tokyo. Bank near Tokyo Station. 2002.

Last Word

This week’s new questions

Regulars

rainy days rain drops on the window surface ; Shutterstock ID 724215220; purchase_order: -; job: -; client: -; other: -

Last Word

Why does water never move in straight lines?

Regulars

Issue no. 3541 published 3 May 2025

New Scientist issue 3541 cover
Piano Exit Overlay Banner Mobile Piano Exit Overlay Banner Desktop