Answer:
Who eats a lot of iron without getting sick?
What is it that given one, you’ll have either two or none?
The more you take, the more you leave behind.
When they are caught, they are thrown away. When they escape, you itch all day.
Fatherless and motherless. Born without sin, roared when it came into the world. And never spoke again.
People take me on walks and I run and have fun. What am I?