The teeth and claws.
Mesopotamia was the civilization that had greater natural defenses.
the
The Natural Defenses of Egypt are the cataracts, the delta, the eastern and western desert.
It kept out invader's.
Resistance.
because it worked
Deserts and Mountains
a common hamster eats corn & carrots
your skin and white cells that kill bacteria
Most of the time hamster constipation is from eating to much fruit or vegetables
Natural talent
Frederick William the Great Elector