Survival over dry seasons was mainly as immature stages.
Morphology of immature stages and biological characteristics of two papilionid butterflies, Papilio memnon L.
In terms of petroleum exploration, diagenesis is an immature stage when mostly carbon dioxide, water, and some methane and heavy hetero-compounds are generated.
ctenophore having tentacles only in the immature stage; body compressed vertically having two large oral lobes and four pointed processes.