Star Wars Galaxies is a host to many weird and wonderful creatures, some friendly, some not so. An aspiring adventurer should always take caution when venturing into the wilds of any planet far from civilization. Rangers and Creature Handlers are specialized in dealing with wildlife and will never be seen unprepared.
Planets are not just populated by wildlife. If you stick around long enough or travel far enough you're bound to encounter Imperial/Rebel Patrols as well as other factions and groups that won't be happy to see a nosey adventurer nearby.