No, that's exactly what it is not. 'Sibling group' implies that there is no direct line of descent, but that at some point the tree of life forked, that Comb Jellies are in the one fork and that all the rest of the animals (including us) are in the other.

Does it mean that every form of life on Earth (right now) evolved from the "Parent" of the Comb Jelly ?

No, just animals. Not prokaryotes, archaea, amoebozoa, etc.

https://en.wikipedia.org/wiki/Animal

Not the parent, but some great-grandparent, yes.

See https://en.wikipedia.org/wiki/Last_universal_common_ancestor for more info:

> The LUCA is not the first life on Earth; it may have lived among a diversity of other organisms whose descendants all died out. Rather LUCA is the most recent form from which all surviving life on Earth is descended.

No, there are many forks before that one.

If this stuff interests you I would like to recommend Dawkins' 'The Ancestor's Tale', it is pretty accessible and walks you back through time step-by-step.

So it's my ultra-uncle

You may be taking this more seriously than my comment warrants.

More like your 30+ millionth cousin.

That's great.

This thing has the coolest warp bubble I've seen.

Wish I knew more about biology. I tried a couple of introductory molecular biology lectures and while I found them very interesting, both times I started feeling quite lost by the 3rd hour. So much chemistry and physics to learn. I wish I was smarter and better educated