A study by the US Geological Survey shows 5 giant snake species could become major threats to human and ecological systems. They include Burmese pythons, South African pythons, python North Africa, South American giant pythons and giant yellow python. 4 remaining species - including giant python Deschauensee, green giant pythons, giant pythons Beni, Southeast Asia mesh python - is considered inadequate hazards.
According to the US Geological Survey, 9 strange snakes coming from many countries in Asia, South America and Africa in the form of imports. Their population in the United States can range from tens of thousands to several hundred thousand individuals. Some species live only in Texas and Florida, but other species can invade 1/3 of Americans. Due to the ability of solid camouflage so people are difficult to recognize them.
"If there are 1,000 snakes in one area, you just get a chance to see a child," said Bob Reed, a scientist at the US Geological Survey , said.
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