Consider the Flumph

The flumph is one of many larval stages of an Old One. Understanding the flumph becomes a lot easier when you equate them to a larval echinoderm or fish fry.

Like this, but with more madness.

The flumph is small, hard to detect, and weak. They are produced with the knowledge that many of them will die before entering their next stage of development. This knowledge is known to the flumph, for they are wise in their youth.