Two-year-old twin polar bears Kallik (pronounced Kah-LEEK), left, and Kallu (Kah-LOO) take a swim during their public debut ...

ST. LOUIS — You can now say "hello" to polar bears Kallu and Kallik at the Saint Louis Zoo! After a weeks-long quarantine and acclimation period, the twin brothers made their public debut on Tuesday.

An energetic pair of polar bear twins will be on view to the public at the Saint Louis Zoo for the first time today ...

Polar bear twins Kallu and Kallik debut at Saint Louis Zoo, attracting visitors to their 40,000-square-foot habitat, with the ...

Lions, tigers and bears, oh my! The Saint Louis Zoo got its start as the 1904 World's Fair Flight Cage, and today, it is the one of the few free zoos in the U.S. Housing more than 14,000 animals ...

ST. LOUIS — The Saint Louis Zoo announced Friday that it will host a first-ever nighttime Animals Aglow Lantern festival this spring, displaying a "dazzling spectacle of lights" in the shape of ...