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Satellite transmitters help Cristina Miranda to understand the movements and habitats of endangered hawksbill sea turtles in the eastern Pacific Ocean.
Barbara Rae-Venter’s account of her genetic sleuthing illustrates the power of technologies to bring criminals to justice. But should there be limits to their use?
Signals from gut microorganisms to the brain might be involved in neurodegeneration. It emerges that the gene APOE — variants of which each confer a different risk of Alzheimer’s disease — has a role in modulating this gut–brain communication.