I won't say that it's the most convincing or logical explanation, but if you really want the answers read it. It's explained in the manga.

"In 600 years?"

Eh... A couple people will become more important, and it will... Well, reintroduce an old friend I think?

Funfact: The surgeries they undergo enhances their bodies so that they can survive the harsh environment of a possibly incomplete terraformation. Also they didn't know about the roaches before landing (the first time). Not to mention fire and firearms don't seem to work on the roaches.

Goat or no buy.

ratfood.

My family has been doing that for decades though.

Shut up, GIR is adorable as FUCK.

Were the Rugrats ever cute?

Eh depends.

Not these guys though.

Eh it's slightly off.

Ah, rest assured that there will be no more beyond that one comment.

You do, apparently.

Still the best Snow Queen.

Not really.

Eh, I've seen worse.

I'd reckon it's partially because they don't plaster NEW YORK TIMES BEST SELLING SERIES on every single book cover.

"PRO: You have to pay attention to every move.

I wonder what'll happen when the promo's over...