[ProtectOurFreedom]

This "Phylogeny" chart shows the Delta variant at top in the light green color. It is essentially a family tree with the oldest ancestors at the center and the youngest great-great-great...grandchildren at the outer ring.

It indeed is the most prevalent now, by far. The concentric rings show time with the latest infections at the outermost ring. it's fascinating how the other variants have faded away as Variant D has out-competed them.

[Honest Nigerian]

That is some scary panic porn.
Just paint a picture and put colors on it to confuse the situation further.
Is this like 21st Century version of tie-dyed T-shirts?
Well, I hope that someone has the copyright to that picture. Would be a shame to miss out on the chance to profit from this disaster.