Our picture of evolution is changing once more, as discoveries in genetics, epigenetics, developmental biology and other fields lend a new complexity and richness to our greatest theory of nature. Find out more in this special feature. Image: tauntingpanda
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In the past few years we have learned to read the signals in other organic molecules that tend to survive longer than DNA and persist even in warm environments. Now, some think they could reveal how archaic humans like H. naledi evolved and interacted. Image: hape662
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At the Humanejos site, 20 kilometres south of Madrid, there are about 100 ancient tombs. None is quite as strange as grave 31. Inside the 1.2-metre-deep grave, the body of a 15-year-old youth was placed, sitting upright. He was then partially buried, leaving his head and shoulders exposed to the elements. Image: A.M. Herrero-Corral, et al.
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There is now a new kind of scientific machine on the horizon: a trimmed down particle accelerator that is small enough to fit on a tabletop. Diminutive they may be, but these table-top accelerators are still bursting with the power and versatility. Image: milkisprotein
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Microbes that have been hibernating deep below the Pacific Ocean since the reign of the dinosaurs have been revived in the lab. Some may be 100 million years old, perhaps making them the longest-lived life forms on Earth. Image: Matt McGee
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