Or how the cow evolved from the pine tree?
All you have to do is draw the pictures: Pine tree ... pine tree with legs ... cow covered with pine needles ... cow. Everyone knows that a theory is true if you show pictures to illustrate it - especially if the pictures are computer-generated!
No, no, no! the cow came first!
The great fire mixed with the great ice, and from the mist the frost giant Ymir and the giant cow were formed. The cow nourished Ymir, and from the cow's saltlick, the god Buri emerged.
Odin (the son of Buri) killed Ymir (and the other giants formed from the sweat of Ymir) and created the universe from Ymir's corpse.
Odin and his brothers first fashioned the earth (Midgard) from Ymir's flesh and, using his eyebrows, encircled it with a protective wall. Using Ymir's unbroken bones, they created mountains and from his teeth the rocks, boulders and stones. Using Ymir's blood, they created the sea and lakes. Using the dead giant's skull, they created the endless expanse of the sky and supported its corners with four dwarfs (Nordi, Surdi, Austri, Westri) from whose names we get the four main points of the compass; North, South, East and West.
From Ymir's brains they created the clouds and from the sparks of Muspell, they created the sun, moon and stars to give light to the world.
While the stars were fixed, the sun and moon were placed in golden chariots. Two riders named Day and Night were charged with guiding the sun and moon on their daily journey across the sky. They were pursued by a wolf intent on devouring them and from time to time, it did catch them in his mouth. Because of the cries of the terrified people of Midgard, the wolf released them, only to pursue them once again.
After the creation of Midgard, Odin and his brothers created the first humans. From a branch of an ash tree they created a man named Askr and from the branch of an elm tree, they created a woman named Embla.
The nine worlds of the universe existed within a world tree named Yggdrasil
The Yggdrasil tree had three large roots, each one of which dipped into three different wells. The first root dipped into the waters of Mimir's spring. These waters were filled with wisdom. The second root lay in the Well of Urd, where mythical creatures weaved the fates of mankind and tended to the needs of the tree. The third root fell into the dark waters where a dragon tore gnawed unceasingly at the tree. Four stags nibbled hungrily at the tree's green buds, while goats tore at the bark. High in the branches an eagle sat with a hawk perched upon his brow. a squirrel scurried up and down the Ash all day carrying insults between the eagle above to the dragon below.
-- The Creation