A zoo in Sweden has been partially closed after a venomous snake escaped from its enclosure over the weekend. Staff at Stockholm’s Skansen Zoo were still searching on Monday for the elusive King cobra, named “Sir Väs” (“Sir Hiss”). The animal — now nicknamed “Houdini” after the famous escape artist — had only arrived at the zoo a few days ago. A video taken by a visitor showed the serpent climbing through a lamp fixture in its terrarium off a tree branch. Zoo staff believe the snake is now somewhere in the reptile section’s ceiling and have closed the building, using flour, sticky traps, and…