Season 18 Episodes17
Discussion
0 comments
Join the conversation
Share your take and reply to other fans.
No comments yet
Be the first to share your thoughts on this episode.


For the past 35 years twins have been some of the most carefully studied people in Australia. In fact revealing the secrets of this extraordinary group of people, may just help all of us live a longer, healthier life.
0 comments
Join the conversation
Share your take and reply to other fans.
No comments yet
Be the first to share your thoughts on this episode.
"It's A Twin Thing" is episode 12 of Catalyst season 18. It aired on October 31, 2017.