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.

ST. LOUIS, Mo. (First Alert 4) - A pair of playful polar bear twins are making their public debut at the Saint Louis Zoo starting today. Kallu and Kallik, two-year-old twin brothers, will now be ...