[s2e3]: Natural History

Focuses on prehistoric life, specifically the End-Ordovician Extinction , the first of the "Big Five" mass extinctions where over 80% of marine species vanished.

Meteorite expert Natasha showcases "space dust"—micrometeorites collected and studied to understand the composition of our solar system. [S2E3] Natural History

Depending on the specific series you are interested in, "S2E3" may refer to other "natural history" or science-related content: Focuses on prehistoric life