Answer:
What is that which, while it lives, constantly changes its habit, that is buried before it is dead, and whose tomb is valued wherever it is found?
They're actually great swimmers now, but later they will become excellent hoppers.
What jumps when it walks & sits when it stand?
This noble creature has the embarrassing inability to get up once it's been flipped onto its back.
What is common to eat before it's born and after it's dead?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?