When did Catalyst Season 18 Episode 12 air?
Catalyst Season 18 Episode 12 aired on October 31, 2017.


Catalyst is Australia's premier science investigation series. Each week the team brings you stories from Australia and around the world, meeting scientists at the forefront of discovery.

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.
Direct answers for episode-level questions and details.
Catalyst Season 18 Episode 12 aired on October 31, 2017.
This episode runs for approximately 54 minutes.
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