underwater

This concluding episode reveals, through time and isolation, how animals and plants on the Galapagos Islands have evolved in the most surprising ways to cope with the profound geological and climatic forces affecting them. (49 min)

This episode mainly focuses on the two Snowball Earth events in the Mid-precambrian period, and the effect they had on life. There’s a similar occurrence in the modern day in Greenland. (44 min)