metamorphosis, n.Trivia

Butterflies can remember things that they learned as caterpillars.

A queen bee is created by a few randomly selected larva (irrespective of gender) being fed Royal Jelly to make them develop queen morphology

Salmon change their color and bodily features on their way from the ocean to the freshwater habitats during the mating season.

Caterpillars don't "morph" into butterflies. Their bodies turn into a protein 'goop' within their chrysalis and rapid DNA-driven cell-division takes care of the rest

Salmon change color to attract a spawning mate

Locusts are not a type of animal, it is a condition experienced by some grasshoppers when they are overcrowded (triggered by legs and arms rubbing together). Once they transform, they grow larger and change colour.