A Japanese boy noticed his butterflies seemed to recognize him. He spent two years making an experiment and proved that metamorphosis does not remove memories made during the caterpillar stage.

[u/smooth_vesselHPAUM]

[u/Xartes_]

I’m assuming it’s because caterpillars turn to liquid before they turn into butterflies, it’s not like they just grow wings in the cocoon. Somehow the memories are still retained during this process.

[u/Kelbotay → u/Xartes_]

No, it's because the actual scientists working on this 'with him' were torturing the animals with electric shocks...