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A four-legged robot has learnt to run on sand at a faster pace than humans jog on solid ground. With low energy use and few failures, this rapid robot shows the value of combining data-driven learning with accurate, yet simple, models.
There is debate about how epigenetic marks, such as methyl groups on DNA, can be passed down from parent to offspring. A mouse model involving targeted DNA methylation will better equip researchers to study this process.
Some scientists say the analysis provides new evidence supporting the hypothesis that the virus that causes COVID-19 spilled over from an animal — but falls short of definitive proof.
Luis Fonseca leads research into micro-, nano- and photonic chip technologies that could kill cancer cells, protect the environment and facilitate space research.