Answer:
If a man would carry my burden he would break his back I am not rich But leave silver in my track
I waddle when I walk and swim in cold water. I wear a tuxedo all year round. What am I?
Microparasite expert at sucking the blood of mammals and birds
Though desert men once called me God, today men call me mad. For I wag my tail when I am angry. And growl when I am glad.
They're actually great swimmers now, but later they will become excellent hoppers.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?