Figure 2.

Schematics of the evolutionary history of human mncRNA. The vertical time‐scale is a descriptive representation (not to scale) of the appearance time of different RNA types with the bottom representing the RNA world and the top representing human‐specific RNA. Eukaryotic branches close to the human lineage are indicated in light green while those further away are indicated in dark green. The branching events relevant to the appearance of the different types of mncRNA are indicated on the right