I just read on another site that this is the St. Louis Zoo. Weird that no one leaves a message or anything though. It may be an automated call that's not working properly.
It is the STL Zoo, and they want you to go to your email and watch the Betty White video and they are essentially asking without asking for donations towards this new polar bear habitat to anyone who is a current zoo member.
They keep you on the phone for a VERY long time in the middle of the work day.