Ctenophores
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Ancient sea creature unlocks a mystery of how tissue developed
The dawn of the Animal Kingdom began with a collagen scaffold that enabled the organization of cells into tissues. Read MoreApr 20, 2017
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Forget sponges: the earliest animals were marine jellies
A powerful new method has been devised to settle contentious phylogenetic tree-of-life issues. such as "What is the oldest branch of the animal family tree?" Read MoreApr 10, 2017