Royal beast: Why are they so strong when they lie flat

This is a world of animal civilization Cao Chen came through and awakened a system that likes to work out multiple-choice questions "I choose one!" [if you get a reward, you will pet the giant panda and go straight to the next level.] "I choose two!" [if you get a reward, you will pet the fire wolf and awaken the skill of "Nirvana rebirth".] "I choose three!" [if you get a reward, you will pet the black ice silkworm and evolve into an ice sea dragon.] from then on, you will taste the sweetness of the soul pets, Become lazy work hard? Does not exist but why are they so strong when they lie flat?