A bold claim about the origins of the echinoderms is based on newly discovered fossils from China. But many pieces are still missing from this part of the fragmented puzzle of life's evolutionary ...

Oocyte maturation is the process by which quiescent germ cells resume meiosis and acquire competence for fertilisation. In both echinoderms and mammals, this transition relies on tightly controlled ...

Echinoderms are one of the most highly derived groups of animals with many species as significant components of several marine communities. They’re classified by three fundamental shared ...

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