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This week’s new questions

Plants wither away when they don't get enough water and sunlight. Can they also feel pain as a result? And is it more efficient for me to carry water in a bottle or in my stomach?

26 February 2025

In late summer sunflower ripened on the farm field; Shutterstock ID 1883406451; purchase_order: -; job: -; client: -; other: -

Shutterstock/Orest lyzhechka

Plants wither away when they don’t receive enough water and sunlight. Can they also feel pain as a result?

Adrian Chong,

Melbourne, Australia

Outdoor Backpack with Water Bottle on the back of a girl, School, isolated Green background Nature. Education concept; Shutterstock ID 2038295597; purchase_order: -; job: -; client: -; other: -

Mariana Serdynska/Shutterstock

Is it more efficient for me to carry water in a bottle or in my stomach?

Mick Liubinskas,

Sydney, Australia

To answer this question – or ask a new one – email lastword@newscientist.com.

Questions should be scientific enquiries about everyday phenomena, and both questions and answers should be concise. We reserve the right to edit items for clarity and style. Please include a postal address, daytime telephone number and email address.

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