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New data has comb jellies replacing sponges as the closest known living relative of the very first animals that appeared on Earth.

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Hildebrand and colleagues looked at a combined total of 5,278 adult and fecal microbiomes from previously published and unpublished studies in the literature.  This post describes exactly what they found.  Continue reading….  

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A fascinating article I wrote about when cells with nuclei may have first emerged.

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My latest article on Medium: How does the single-celled organism, Tetrahymena, manage to have 7 different sexes and tell them apart?! Continue reading…

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Evolution is rarely straightforward and the selection for symbiotic plastids is a big part of the reason why plants and you exist. Continue reading…

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Fossil evidence and genetic analyses are beginning to reveal how prehistoric snakes lost their limbs and developed such a streamlined body…More

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