Horizon - Full Series Information, Trailer & IMDb Reviews
Horizon Season 18 Episode 12
Episode Title: Unknown
Genre:
Documentary
Countries:
UK,
Airing Date: March 20, 1982
Runtime:50 mins
IMDb Rating:
Watch Horizon Season 18 Episode 12 online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.
Horizon: In this episode, Horizon explores the new evolutionary theory that there are sudden, vs. gradual, evolutionary changes from one species to another.