Brainstorm - Creature Mechanic - Creature production - Ideas needed!

[Rasmus]

Hmm, what if we could have different food levels..

Food level 1:
------------
Rocks = 100
Wheat = 10
Water = 1
.....

Food level 2:
------------
Gold = 100
Leather armour = 20
Iron Ingots = 25
.....

Food level 3:
------------
Diamonds = 100
.....

And that certain creatures like the imps and impanzees could be created from food level 1.
Orcs and Cyclotaurs from food level 2.
Cowdragons from food level 3.

Hmm, if we are doing this we really need to come up with better names than "food level". I imagine small icons in the bottom left of the item description window showing the item value if the player wanted to feed the dark mother with it.