A tiny RNA molecule ensures that the larvae of a roundworm develop into adults. The discovery of this RNA in many other animal groups implies that this way of keeping developmental time may be universal.
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Adoutte, A. Small but mighty timekeepers. Nature 408, 37–38 (2000). https://doi.org/10.1038/35040669
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DOI: https://doi.org/10.1038/35040669
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