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

The video explores the discovery of ancient bilaterian fossils, Ikarya Wariootia, which may push back the origin of bilaterians by millions of years. It also delves into the study of microbial communities on human tongues, using advanced imaging techniques to understand their structure and potential health benefits, such as regulating blood pressure through nitric oxide production.

What imaging technique did researchers develop to study microbial communities on human tongues?

What role do the researchers believe oral microbes play in regulating blood pressure?

Discuss the potential health implications of the bacteria found in the human mouth as suggested by the researchers.