Species Shape doubles and is joined at the base  
head shape changes to become complex(sharp side and flat side) and heavier  
 gains a handle
produces ink at the head
Gains the ability to remove it head 
 Retains handles, gains complex spiral like head structure 
loses blade and becomes hollow retains its pointy edge 
Gains a handle 
Gains a blade with a sharp edge 
 gets a head losing spirals on the body
kitchen utensils 
handle becomes metal and head shape changes into a curved shape 
becomes longer in size 
Changes material and become steel 
Changes head shape to complex with holes 
becomes plastic
blade becomes longer 
Pointy head 
Utility Tools 
 Becomes straight with very slight increase in length and gains spirals
 Becomes straight with very huge increase in length and gains spirals 
Flattens out and distributes it material becoming linear 
gains spirals on the body