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Genetically, Central American mammoths were weird

We tend to lump all mammoths together as big, hairy elephant-like beasts with enormous tusks. But there were a number of mammoth species, including less furry ones that inhabited temperate regions. And the furry ones include at least three species: the Eurasian steppe mammoth, the Arctic-specializing woolly mammoth, and the late-evolving North America-only Columbian mammoth. Because these species inhabited the Arctic, it has been remarkably easy to obtain DNA from them, providing a genetic pict

Linda Yaccarino departs as boss of Musk's X

Linda Yaccarino departs as boss of Musk's X Musk has posted a brief reply, saying only: "Thank you for your contributions." In a post on the platform , she said was "immensely grateful" to Musk for "entrusting me with the responsibility of protecting free speech, turning the company around, and transforming X into the Everything App". Ms Yaccarino has been in the role since June, 2023. Linda Yaccarino, the boss of Elon Musk's social media site X, has announced she is stepping down. Ms Yacca