Posted by: Rebecca Whitham, Communications Surprise! We’re excited to announce that we have not one, but two sloth bear cubs doing well behind the scenes at Woodland Park Zoo. It turns out our big news about having a cub born back in December is even bigger news, now that we know we have twins! Video: Sloth bear mom Tasha leaves the maternity den briefly, lured by a snack of crickets offered by zookeepers, revealing the two cubs she birthed on December 18. The case of the hidden sloth bear cub Back on December 18 when the cubs were born, 7-year-old mother Tasha was so quick to build a fortress of hay around her cubs to protect and support them in the maternity den, that we never got much of a visual on the litter. We spotted one cub, but we suspected there was a second cub in the litter, hiding out from where we could see it. What made us think we had two cubs? Through baby monitors, keepers could hear what sounded like two cubs breathing, grunting and nursing. But since