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This week’s new questions

What caused the pictured red-only “rainbow”. And are human children and babies uniquely noisy compared with the offspring of other animals?

29 December 2021

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Jodie Calvert

My friend spotted a strange red-only “rainbow” just after sunrise. There was no rain, so what caused this?

Phil Eden, Sheffield, UK

 

Emperor Penguin with two chicks in Antarctica; Shutterstock ID 328830815; purchase_order: -; job: -; client: -; other: -

Vladsilver/Shutterstock

Babies and children make a lot of noise when they cry and shriek. Why do the young of other animals seem generally much quieter?

Greg Lawrence, Canberra, Australia

 

 

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