This Worm-y Critter Is (Probably) Our Oldest Ancestor | SciShow News

Newly described wormlike fossils dating back over half a billion years might be our oldest ancestors, and researchers have mapped and visualized the physical structure of the microscopic communities growing on human tongues!

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Sources:

Ancient Bilaterian
https://www.pnas.org/content/early/2020/03/17/2001045117
https://www.eurekalert.org/pub_releases/2020-03/uoc--aoa031920.php

Tongue Microbe Spatial Ecology:
https://dx.doi.org/10.1016/j.celrep.2020.02.097
https://www.pnas.org/content/108/10/4152.short
https://www.sciencedirect.com/science/article/pii/S072320201200046X
https://www.frontiersin.org/articles/10.3389/fcimb.2019.00039/full
https://www.eurekalert.org/pub_releases/2020-03/cp-irh031820.php

Images:

Thumbnail: https://www.eurekalert.org/multimedia/pub/227429.php

https://www.eurekalert.org/multimedia/pub/150154.php?from=370199
https://www.eurekalert.org/multimedia/pub/150153.php?from=370199
https://www.eurekalert.org/multimedia/pub/227430.php?from=459132
https://www.eurekalert.org/multimedia/pub/227431.php?from=459132

https://www.eurekalert.org/multimedia/pub/227293.php?from=458994