A FUNNY LITTLE LIZARDThe Magic School Bus is populated by a whole bunch of really freaky, funny, and friendly characters.  No matter what adventures they are going on, those kids know that they can depend on Mrs. Frizzle.  But, who can the teacher who has the whackiest lesson plans in the world depend on?  Well, she can hardly go anywhere without her best pal in the whole world:  Liz, the Jackson's Chameleon, devourer of bugs, stepper of peddles, and even the first character ever on screen!This delightful critter might defy several expectations of the real world.  She's got horns, which