15 foot Eastern Diamondback rattlesnake. Largest ever caught on record.
After seeing this, I did a little research, and learned the following:
 One bite from a snake this large contains enough venom to kill over 40 full grown men.
 The head alone is larger than the hand of a normal sized man.
 This snake was probably alive when George H. W. Bush was President.
A bite from those fangs would equal being penetrated by two  1/4 inch screwdrivers.
A snake this size could easily swallow a 2 year-old child.
 A snake this size has an approximately 5 and 1/2 foot accurate striking distance. (The distance for an average size Rattlesnake is about 2 feet)
Judging by the size of the snake, it is estimated to weigh over 170 pounds. How much do you weigh?