If you pet the bunny, you get one health point. Keep petting the bunnies and you can regain health without having to go off planet. That will 1) keep some of your away party from dying and 2) avoid a cost for take off and re-landing. While there isn't currently a cost for that I know Ibol is considering changing that game mechanic.
I too have accidentally shot a bunny or two when they were next to a monster that I killed with shotgun blasts. Besides, they're bunnies -- every planet should have some
