Like something out of the B movie, Tarantula — this week some new scientific evidence laid claim that spiders could overtake the planet — if they wanted to. All it takes is for them to band together. So the next time you’re ready to lay off and wallop that pesky arachnid crafting a web on your porch, think twice — because his 'spidey' brethren might just take to retaliating . . . in a most devastating manner.