[rhizome]

If a "baby bird" metaphor doesn't connote growth and scaling I'll eat my hat.

[kbutler]

Moderate growth, yes. Scaling, no. There is a very definite limit on the size of a baby bird.

A scaling metaphor from nature would be something like a tree seed becoming a forest.

Hope that hat's tasty.

[rhizome]

Where do birds come from, then?