"Other creatures largely "waste" the land, by using it highly inefficiently. They don't very well plant and store up food."
Squirrels, bees, and ants store food, and those are just the first ones I could think of without bothering to google. As someone mentioned earlier, some ants actually have a form of agriculture, and many insect species have symbiotic relationships with certain plants, not unlike our own symbiotic relationships with domesticated plant and animal species.
"They don't widely trade and stockpile resources and food into warehouses."
They don't trade? What about bear markets and bull markets? Huh? Huh? :^p
Seriously, just because animals don't tend to exhibit an external economy like ours doesn't mean anything. One could argue that we are the deficient ones because we have needs that most animals lack.
Also, many animals are walking "food warehouses," storing fat on their bodies to get them through lean times (e.g., bears, camels, moose, sea lions, walruses, penguins). You don't NEED to stockpile food if you've already eaten it.
Kudos to the person who posted about bonobo chimpanzees trading food for sex. Cool! I didn't know about that!
~David D.G.
