Surviving Earth
When the Oceans Shrank
Season 1 Episode 6 of 8
A look at the Late Ordovician mass extinction and its aftermath, following an early fish trying to find a mate before its reef is destroyed by freezing water
Surviving Earth airs on Sky One HD at 8:00 PM, Wednesday 23 September. (Subtitles, new.)
Learn more about Surviving Earth and other education/science/factual topics on our factual page
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History
Wildlife