A family in Florida got a pretty big shock when an uninvited guest slithered into their picnic area.
Video from the family shows the 17-foot Burmese python. A park ranger killed the snake.
Pythons are an invasive species in North America.
In January, the Florida fish and wildlife conservation commission will host a 2013 python challenge. A grand prize of $1,500 will go to the person who kills the most pythons, and $1,000 will go to the person who kills.
They hope this will help control the expanding population. Researchers say pythons, which are not native to Florida have devastated rabbit, fox, possum and bobcat populations.
Many pythons are the offspring of pet snakes that were either released or escaped into the wild.
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