The St. Louis Zoo has announced that one of their twin polar bear brothers is about to leave for another destination soon. This is Kallik and his twin brother Kallu in the St. Louis Zoo when they arrived in March of this yearSt. Louis Zoo via YouTube St. Louis Zoo via YouTube loading... The St. Louis Zoo just announced today on social media that these twins will soon be separated, but for a good reason. The St. Louis Zoo has always been one of my family's favorite destinations. We always enjoyed the bear enclosures and I have no doubt the conservation experts at the St. Louis Zoo know what they're doing for these polar bear brothers.