Evolution: Brain Power | Full Documentary | NOVA | PBS
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The story of the dolphin reveals how intelligence evolved, step by step, over billions of years.
Official website: https://to.pbs.org/4zBhBm3 #novapbs
Brains might be the most complex structures on our planet—so how did evolution build them? To find out, rewind the clock three billion years to trace the evolutionary story of the dolphin, one of the smartest animals alive today. Discover how the first light sensing cells led to eyes that helped wire bodies to think, how a fluke viral infection supercharged the speed of thought, and how the neocortex emerged as early mammals re-wired their brains to attune to the night. Together, these breakthroughs reveal how evolution transformed simple perception into the most powerful organ on Earth—a structure capable of thought, communication, and empathy.
Chapters
00:00 Introduction
06:05 The Origin of Eyes
23:02 Protecting Complex Brains
32:54 Evolution of the Mammal Brain
41:45 The Earliest Marine Mammals
49:07 Conclusion
evolution documentary, evolution of eyes, evolution of brain, animal intelligence, archean eon, cambrian period, camera eyes, placoderm, nervous system, triassic period, cynodonts, dolphin documentary, indohyus
© 2026 WGBH Educational Foundation
All rights reserved
This program was produced by GBH, which is solely responsible for its content.
This program is made possible by viewers like you. Support your local PBS station here: https://pbs.org/donate/
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#dolphin #brain #documentary
Official website: https://to.pbs.org/4zBhBm3 #novapbs
Brains might be the most complex structures on our planet—so how did evolution build them? To find out, rewind the clock three billion years to trace the evolutionary story of the dolphin, one of the smartest animals alive today. Discover how the first light sensing cells led to eyes that helped wire bodies to think, how a fluke viral infection supercharged the speed of thought, and how the neocortex emerged as early mammals re-wired their brains to attune to the night. Together, these breakthroughs reveal how evolution transformed simple perception into the most powerful organ on Earth—a structure capable of thought, communication, and empathy.
Chapters
00:00 Introduction
06:05 The Origin of Eyes
23:02 Protecting Complex Brains
32:54 Evolution of the Mammal Brain
41:45 The Earliest Marine Mammals
49:07 Conclusion
evolution documentary, evolution of eyes, evolution of brain, animal intelligence, archean eon, cambrian period, camera eyes, placoderm, nervous system, triassic period, cynodonts, dolphin documentary, indohyus
© 2026 WGBH Educational Foundation
All rights reserved
This program was produced by GBH, which is solely responsible for its content.
This program is made possible by viewers like you. Support your local PBS station here: https://pbs.org/donate/
Enjoy full episodes of your favorite PBS shows anytime, anywhere with the free PBS app: https://to.pbs.org/2QbtzhR
📰 Stay up to date on the latest science discoveries, full episodes, articles, videos, and more by signing up for NOVA's newsletter here: https://to.pbs.org/4brCC7Y
🛍️ Shop official NOVA 50th anniversary merch: https://nova-shop.org/
Follow on social for more NOVA content
Twitter: https://twitter.com/novapbs
Instagram: https://www.instagram.com/novapbs
TikTok: https://www.tiktok.com/@novapbs
#dolphin #brain #documentary
