LAWRENCE, Kan. (AP) — A popular exhibit at the University of Kansas Natural History Museum is empty and quiet after all the bees in an observation hive were killed by cold weather. Bruce Scherting, director of exhibits at the museum, says the observation hive had a small opening for the bees. He says recent cold, bitter winds apparently blew directly into the hive and killed the bees. He says some bees die every the winter but it's unusual to lose an entire colony. The museum announced the bees' deaths on its Facebook page Friday, and said it is working to prevent a similar problem in the future. 6News Lawrence reports (http://bit.ly/1lvGJAr) the exhibit will now be taken apart and sterilized. The museum plans to bring in a new queen and colony in the spring.