A ferocious 20ft long python spreads its jaws and hisses after being caught and snatched away as it prepared to feast on a pet bulldog.<br /><br />The snake suffocated the four-year-old white dog named ‘Big’ on October 12 at 9am. <br /><br />It dragged the dead pooch into undergrowth as it limbered up to swallow its victim in Bangpakong, Thailand.<br /><br />But owner Noi Thongchai, 45, realised the dog was not barking as normal and called the emergency services when she spotted the reptile strangling her dog in the bushes. <br /><br />Snake catchers hacked through the trees and dragged the angry snake into the open - where it spread its deadly jaws and hissed menacingly after being denied its dinner.<br /><br />The beast even tried to escape several times as six men grappled to cram it into a bag to be driven away.<br /><br />Devastated grandmother Noi said: ‘’I returned home in the morning and noticed that Big was not running around in the yard. He was not barking like normal.<br /><br />‘’I called him and he did not come running to me. I looked in the trees and saw him on the ground with a large snake. Immediately I shouted for help from people in the village.<br /><br />‘’I don’t understand how the snake caught him. It must have been quick to catch Big, he was a smart dog and so strong.''