Petrace shows battle pet racials in a moveable and re-sizable image. I would use this until you have them all memorized, or if you just do battle pets sporadically.

To move, left click it.

To resize, right click a corner.

To turn on or off, type /pr show or /pr hide.

To display strengths and weaknesses between the pet families, check out my other pet addon, Petwheel