Scientists just discovered a 75 million-year-old dinosaur that bears a spooky resemblance to a creature from the 1984 film "Ghostbusters." The new discovery found in Montana was named "Zuul" after the villainous monster from the movie. Like Zuul, the new species has a short snout, prominent horns behind its eyes, and a 10-foot tail covered with spikes. Zuul would have been about 20-feet-long and weighed approximately 5,500 pounds, similar to that of a white rhinoceros.