By Ewan Gleadow & Joe Smith A horrifying new creature with “blade-shaped fangs” has been spotted climbing up vertical cliffs deep underground. The never-before-seen animal has been discovered climbing up rock faces inside limestone mountain caves in Thailand. The snake-like creature has been dubbed the Cave Kukri Snake by its discoverers. The beast’s terrifying fangs are thought to be part of adapting to a “harsh environment” deep within the cave structure, reptile hunters say. The amazing discovery was made after explorers climbed five stories high to gain samples. The ‘Cave Kukri Snake’ or, …