On Thursday, the St. Louis Zoo experienced a brief lockdown after a 4-year-old Andean bear, Ben, escaped his outdoor habitat for the second time this month. Zoo Director Michael Macek described Ben as "curious" and said he had torn through stainless steel clips used to secure his enclosure. The zoo has since reopened and Ben is back in his habitat, and they are reminding guests to remain alert and aware of their surroundings while visiting.