Some creatures posses complete metamorphism (holometabolism) or alternation of generations (metagenesis), what bring up the possibility of individuals of the same species have extremally different aparences; due to this, we tag these distinct forms separately (e.g. frog/toad and tadpole), however I belive we should treat those cases in a little different way. I suggest the creation of umbrella tags that would encompass all stages of development for determined species.

e.g.

• Form 1 = adult form (holometabolism) or most known form (metagenesis).
• Form 2 = juvenile form (holometabolism) or least known form (metagenesis).

_{Note: My suggestion is based in the discussion on forum #224190, more specifically in one of the Mutisija's arguments.}