What were the advantages enjoyed by the Fertile Crescent that allowed it to be the earliest site of development for civilization?In Guns, Germs,...

Advantages of the Fertile Cresent, according to Diamond,
include:

1. Mediterranean climate: mild, wet
   wingers, and long, hot, dry summers.


2. abundance of wild
   plants: hunter gatherers were able to notice the value of the land based on its sheer
   number of plants growing naturally, without cultivation; this also proved the natural
   fertility of the soil.


3. hermaphroditic "selfers": many
   plants growing in the FC self-pollinate or occasionally cross pollinate, naturally; this
   meant a high percentage of the natural plantlife had a convenient reproductive biology
   for humans; the occasional cross pollination allowed for more varieties to spring
   up.


4. big mammals: the abundant natural vegetation
   attracted large mammals.