Zoo visitors Saturday learned more about the flying nocturnal mammals during a special seminar Saturday.
Children also increased their bat knowledge through informative games and crafts.
At dusk, people gathered at the Waugh Drive bridge at the corner of Waugh and Allen Parkway to watch a colony of about 250,000 Mexican Free-tailed Bats fly out to feed on insects overnight. More presentations and children's activities were also available at that location.
The batty fun continues Sunday beginning at 10am with booths, children's activities and zookeeper chats about bats at the zoo, plus another bat colony bridge experience at 6pm.