Horizon - Season 61 Episode 3
Theoretical physicist Professor Jim Al-Khalili goes on a journey through 600 million years of evolution to uncover how the human brain, the most complex structure known in the universe, came to exist. With some 100 billion neurons and over 100 trillion connections - more than all the stars in the Milky Way - the human brain is one of nature's greatest achievements. But how did something so incredibly sophisticated evolve from its simple beginnings?
First Air Date : 1964-02-04
Last Air date : 2025-10-06
Runtime : 57 minutes
Genre : Documentary
Cast :
Crew :
Quality : 
Subtitles :
- Season 61 : Episode 12025-08-18
- Season 61 : Episode 22025-09-22
- Season 61 : Episode 32025-09-29
- Season 61 : Episode 42025-10-06
