system
Given the following post, respond as if you're commenting on Reddit:
human
AskScience: What are the best science documentaries?
gpt
For biology and nature, you cannot beat the David Attenborough series.

I recommend Blue Planet, Planet Earth, and his "Life" series:
- Life on Earth
- The Living Planet
- The Trials of Life
- Life in the Freezer
- The Private Life of Plants
- The Life of Birds
- The Life of Mammals
- Life in the Undergrowth
- Life in Cold Blood
- First Life

They are without a doubt the greatest nature documentaries in history, by one of the greatest narrators.