How the Neocortex Transformed Mammalian Brains
The ancestors of dolphins lived in a very different world, when Pangea was hot and dry and giant reptiles dominated the land. This clip from BBC’s Evolution episode "The Dolphin" follows the small cynodonts that survived by burrowing and becoming active at night, escaping competition with larger predators while their senses adapted to a darker world.
As smell and touch became increasingly important, the cynodont brain grew larger and more complex, eventually giving rise to the neocortex — a defining feature of mammalian brains. The video explores how this folded layer of the brain provides space for vast networks of neurons involved in processing information, memory, problem-solving, and other complex behaviors.
Go on an epic four billion year adventure travelling through time to uncover how life on earth evolved. Learn more.
You Might Also Like
In Desert Pangolins' Quest for Food, narrator Sir David Attenborough reveals how pangolins find nutritious food in the harsh, dry environment of the desert. They use their keen sense of smell to locate termite nests. This video is excerpted from BBC’s Seven Worlds, One Planet, a series featuring remarkable animal behavior from all seven continents.
In Nightfall on the Coral Reef, narrator Sir David Attenborough explains how animals survive on the coral reef at night. Watch how manta rays hunt at night. This video is excerpted from BBC’s Blue Planet, a definitive documentary series diving into the mysterious depths of the sea to discover the natural history of the world’s oceans and the rarely seen marine life that reside there.
In Coral Reefs at Night, narrator Sir David Attenborough explains how coral emerge at night to eat, grow, and defend their territory, with dramatic consequences. This video is excerpted from BBC’s Blue Planet, a definitive documentary series diving into the mysterious depths of the sea to discover the natural history of the world’s oceans and the rarely seen marine life that reside there.
In Bioluminescence and Jungle Predators, narrator Sir David Attenborough explores the fascinating world of bioluminescence in the jungle. The video showcases how glowing fungi lure insects and how the railroad worm uses its colorful glow to hunt in the dark. This video is excerpted from BBC’s Planet Earth II, a breathtaking documentary series that highlights the natural wonders of our planet.
In Desert Pangolins' Quest for Food, narrator Sir David Attenborough reveals how pangolins find nutritious food in the harsh, dry environment of the desert. They use their keen sense of smell to locate termite nests. This video is excerpted from BBC’s Seven Worlds, One Planet, a series featuring remarkable animal behavior from all seven continents.
In Nightfall on the Coral Reef, narrator Sir David Attenborough explains how animals survive on the coral reef at night. Watch how manta rays hunt at night. This video is excerpted from BBC’s Blue Planet, a definitive documentary series diving into the mysterious depths of the sea to discover the natural history of the world’s oceans and the rarely seen marine life that reside there.
In Coral Reefs at Night, narrator Sir David Attenborough explains how coral emerge at night to eat, grow, and defend their territory, with dramatic consequences. This video is excerpted from BBC’s Blue Planet, a definitive documentary series diving into the mysterious depths of the sea to discover the natural history of the world’s oceans and the rarely seen marine life that reside there.
In Bioluminescence and Jungle Predators, narrator Sir David Attenborough explores the fascinating world of bioluminescence in the jungle. The video showcases how glowing fungi lure insects and how the railroad worm uses its colorful glow to hunt in the dark. This video is excerpted from BBC’s Planet Earth II, a breathtaking documentary series that highlights the natural wonders of our planet.