ng day for visitors at albuquerque's zoo. we got calls from concerned viewers who told us there was an animal on the loose at the zoo. we quickly found out it was just a drill. the scenario was that a lion got out .....and zoo workers had to get visitors inside as quickly as possible. zoo-goers think having the drills is a good idea. well, I think it's a good thing they have safety drills because you always think about something escaping at the zoo and now you know what they would do. officials at the zoo tell us they perform the drills 4 times a year. ad lib toss to meteorologist ..