Tonguez
A suffusion of yellow
It was more responding to why all those kryptonian animals were in their own rockets ships - Jor-El was big in to animal testing to perfect his experimental escape pod, who knows how many kryptonian beasties died in the process?I know that was the Silver Age origin, but I don't recall that being mentioned in the movie. (I suspect, like DADHAT, a lot of questions about the movie will be resolved once it's available to rewatch at home with captioning and deleted scenes.)