Not sure if repost, but feels bad man.
Pokemon Episode #21:
Did you know that in real life. butterflies die after
they lay their offspring? Caterpillars spend much
of their lives eating veggitarian so that they can
spin themselves into a cartoon. Once the cartoon is
spun. they spend majority of their
weeks "evolving" into a butterfly. After the turns
into a butterfly, the butterfly lives its life for about
One theory suggests why Ash' s Butter free didn' t
return to him is simply because Butterfree is dead.
Feels Sad, Bro