Answer:
A mysterious, fantastic creature, It has one defining feature, And for humans at their worst, In their eyes it's just a horse
What creature starts yellow inside and white outside, then becomes its first five before becoming the whole?
What jumps when it walks & sits when it stand?
What grows up while growing down?
What animal would you get crossed a duck, a beaver, and an otter?
What is it that makes tears without sorrow. And takes its journey to heaven?