Nature: An ice-covered Niagara Falls

The news items featured in today’s roundup are available to read in full at Nature.com. To get a daily digest of the world’s leading science news delivered straight to your inbox, you can subscribe to The Briefing, Nature’s free daily newsletter: https://www.nature.com/briefing/signup - Produced and presented by Jacob Smith - Stock Footage from Getty Images / Stanislav Stelmakhovich - Stock image from Getty Images / Bloomberg / SeongJoon Cho - Music from Triple Scoop Music / Richard Ames - Super

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