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Researchers deliberately infect participants with SARS-CoV-2 in ‘challenge’ trials — but high levels of immunity complicate efforts to test vaccines and treatments.
Simple measures to strengthen the interface between science, policy and society in African nations could help the continent leapfrog others in sustainable innovation and development.
Climate campaigners and politicians rightly concentrate on the benefits of clean energy — but without more support for those who are adversely affected, the backlash will only grow.
An innovative proposal to stop exam over-preparation, plus William Bateson’s 1924 take on the previous century of biology, in the weekly dip into Nature’s archive.
A robot that changes from trot to bounce to avoid falls hints at why four-legged animals transition between gaits. Plus, AI designs new gene-editing tools and how autonomous weapons are changing war.