Last ancestor humans shared with worms had sophisticated brain, microRNAs show

Last ancestor humans shared with worms had sophisticated brain, microRNAs show

"By looking at where in the body different microRNAs evolved, we can build a picture of ancestors for which we have no fossils, and uncover traits that fossils simply cannot show us."

Fascinating research. The mutations that gave these ancestral worms sophisticated brains helped them flourish and pass those genes down the line to every vertebrate. If I were going to choose a different career in science, molecular paleontology would be awfully tempting. This is just the tip of the iceberg.