Five monster 16ft (5.4m) pythons have been rescued after being spotted by terrified residents on the loose in the UK countryside. <br /><br />The giant reticulated pythons - which are the world's longest species of snake - were dumped by a cruel pet owner in woodland in north Lincolnshire. <br /><br />Four of the huge reptiles were recovered after being spotted slithering around in the undergrowth in the Twigmoor and Cleatham areas on June 13 and 14.<br /><br />The alarming discovery prompted Humberside Police to issue a warning to pet owners to keep dogs on leads as the creatures were known for 'crushing prey to death.'<br />