Join The Elephant Sanctuary in Tennessee on Twitter @elephantsdotcom at 12:30 p.m. CST Friday, August 12 for a live Twitter chat with special guest, Paleoecologist Greg Smith @paleodentist. Greg will be answering questions about the connection between elephants and their extinct relatives, mastodons and mammoths. Follow along and tweet your questions using the hashtag #TrunkTalk.

If you are new to Twitter Chats, we recommend using @tweetchat at http://tweetchat.com to participate.

Greg Smith is a Vertebrate Paleoecologist PhD student in the Earth and Environmental Sciences Department at Vanderbilt University. His research primarily focuses on the environments and diets of extinct members of the elephant family.