We've learned something today

I just haven't figured out what it is yet. There has to be a message here, somewhere. At least we've learned that Rasta-Pigeon has a PhD and that lemon squirrels reproduce sexually. That is at least something, I guess...

Comic transcript

Panel 1:
Rasta-Pigeon is looking at lemon squirrel (see comic 128).
R: Ya know, that thing puzzles me, dude. Is it a fruit or is it an animal? Wouldn’t some kind of nut be better suited? Is it in agony? Why’d you make it?
Panel 2:
P enters, the lemon squirrel jumps away.
P: Dunno. I had these lemons and I could. You should try doing things sometimes. It’s fun. You could have so much potential!
R: Yeah, we’re about the same potential I guess...
Panel 3:
P: Look, I don’t mean to sound harsh, but you’ve been sitting around, smoking weed for half a year. If you don’t live up to your potential, you’re not gonna increase it. I, on the other hand, have been working on my skills my whole life. I created a new citric life form and I’ll get my PhD soon!
Panel 4:
R: Ah, shit, you don’t have your PhD yet? Don’t worry about it, everyone can do it at their own speed, it’s all fine. Anyways, I was very fascinated with your lemon-squirrel-thingy, so I gave it a shot myself. Wasn’t too hard. Just one thing I couldn’t figure out, though ... how did you plan to prevent those things from ... breeding?
Panel 5:
P: I ... I only made one.
R: Ah, I figured. Don’t worry, so did I ... oh, wait...
Panel 6:
They are suddenly surrounded by lemon squirrels.
R: See? That happens when I do things.