Brain Slug is a webcomic about two kids (teens maybe), Alex and Lance, as well as Alex's pet rabbit, Dante. Dante isn't just a plain bunny, though. He's actually an alien. The artwork is pretty decent (it's an upbeat style, in my opinion).

The archive is fairly small with only 60 pages (in fact I just read it after discovering it less than an hour ago) so why not pop on over and check it out?

Brain Slug Comics