Nature

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Just when we thought octopuses couldn’t be any weirder, it turns out that they and their cephalopod brethren evolve differently from nearly every other organism on the planet. In a surprising twist, in April last year scientists discovered that octopuses, along with some squid and cuttlefish species, routinely edit their RNA (ribonucleic acid) sequences to
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Most people of Eurasian descent have some DNA from Neanderthals, our close relatives, strong in brow and nose. Some Homo sapiens bred with Neanderthals or other species, such as the Denisovans, who likewise shuffled their genes among ours.   The concept of species might suggest easily sorted groups, but nature is messy. Species can mingle and weave and engulf one another. We
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It’s official: the bomb cyclone is back. The winter storm that the Weather Channel has dubbed “Riley” has been undergoing the rapid intensification process called “bombogenesis,” which means its central pressure is dropping quickly (an indicator of a storm’s strength).   In this case, the nor’easter still appears to be intensifying, but the central surface pressure of the storm system has already