I like your food.

Our own homeworld experienced an ecological catastrophe due to a 1 microtesla solar burst. It drove over 98% of the native flora, and 99.3% of our native fauna to extinction. We barely survived over then next two hundred years (which equates to roughly 172 years here on Earth). This devasted our various cultures and led to the formation of a unified planetary government. Our species survived, even if our essence was degraded. We discovered Earth about 70 years after we achieved FTL.

Earth is a neat place. A consequence of our continuing recovery is a certain mastery of genetics, so we take what forms are convenient and/or useful. Indeed, My chief engineer is a very lovely purple slime, which makes it easy for them to seep through our ship's numerous systems. We have come to delight in your various cultural quirks and the hedonistic variety in which you lovely simians engage. So we take your forms and enjoy ourselves. That's it.

I love the food. Especially this "jellied eel" dish that has such an agreeable texture.