Facebook followers of the Indiana Department of Natural Resources can “talk” online with ecologist Tom Swinford on Wednesday, July 1, from 2-3 p.m. EDT, on the DNR’s Facebook wall.

Swinford will discuss the difference between dragonflies and damselflies, their origins and unique physical abilities. He also will highlight common and rare species of dragonflies. Participants are invited to join the conversation and ask questions.

Future topics, instructions on how to join a conversation on Facebook, and commenting guidelines are posted at dnr.IN.gov/7315.htm

To join a chat, go to the DNR’s Facebook wall, facebook.com/INdnr , and click “like” (if you are not already a “friend”).

You may begin typing questions during the time slot. The DNR experts will answer questions as time allows.