When did Catalyst Season 1 Episode 2 air?
Catalyst Season 1 Episode 2 aired on January 1, 2015.


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.
Do sharks have friends? Watch and see if there is actually anything to study when we look at the "social behavior" of sharks off the coast of New South Wales, Australia!
Direct answers for episode-level questions and details.
Catalyst Season 1 Episode 2 aired on January 1, 2015.
This episode runs for approximately 30 minutes.
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