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.
Vision transformed the way animals interacted with their surroundings, turning survival into a game of seeing, sensing, and responding. This clip from BBC’s Evolution episode "The Dolphin" travels back to the Cambrian Period, when complex eyes began appearing in many forms, including the prominent eyes of trilobites, and explores how the rise of vision may have driven an evolutionary arms race between predators and prey.
Rare Cambrian fossils also preserve evidence of neural tissue and even brain structures, offering clues to the connection between increasingly sophisticated eyes and increasingly complex brains. From wide-ranging compound eyes to giant camera-like eyes, the video traces the remarkable variety of ways animals have evolved to process the visual world around them.
How does an animal make sense of its surroundings — and what happens when that world changes? This lesson for ages 11–18 examines the evolution of sensory systems and the increasingly sophisticated brains that allow animals to gather, process, and respond to information.
In the BBC video clips from Evolution Episode 4: "The Dolphin," explore the evolution of the eye, changes that made communication between neurons faster, and the development of the mammalian neocortex. Along the way, consider how better ways of detecting and processing information created new opportunities for behavior and survival.
The worksheet activities ask you to connect environmental information to nervous system responses, compare the advantages of vision for predators and prey, and trace the relationship between myelin, faster nerve impulses, information processing, and complex behavior. At the end, you'll return to your initial prediction and use evidence from the lesson to reflect on how sensory challenges and environmental change shaped the evolution of increasingly complex brains.
As the predator-prey arms race intensified in the ancient oceans, fish evolved stronger defenses — and increasingly sophisticated brains. This clip from BBC’s Evolution episode "The Dolphin" examines the armored placoderms, whose fossilized skulls reveal surprisingly complex brains for animals that lived around 400 million years ago. CT scans allow scientists to reconstruct these ancient brains and explore structures involved in movement, balance, and processing information.
The video also explores a remarkable theory about the evolution of myelin, the insulating material that allows nerve signals to travel much faster along neurons. Retroviral DNA may have played a role in triggering the development of myelin in early vertebrates, helping their brains process information more rapidly while freeing them from the need for enormous nerve fibers. This evolutionary innovation helped pave the way for increasingly sophisticated vertebrate brains.
Bring BBC’s Evolution into your classroom with a flexible teaching guide designed to help students investigate how life changes over time. Built around five episodes featuring the elephant, ostrich, bat, dolphin, and horse, the interactive unit combines engaging BBC footage with student worksheets, evidence-based activities, teaching strategies, and extension ideas.
The lessons are structured around the 5E Instructional Model and can be used as a complete five-day learning experience or adapted to support an existing evolution unit. Students make predictions, analyze evidence from video clips, identify patterns, and develop explanations about natural selection, adaptation, genetic variation, and other mechanisms of evolutionary change.
The guide includes:
- Background information and vocabulary for the topic
- How to access and navigate the interactive unit (including videos and worksheets)
- Teacher tips and implementation guidance for using the materials in whole-class, small-group, pair, or individual settings
- Extension activities including an evolution timeline, animal comparisons, and adaptation research.
- NGSS alignment covering middle and high school standards related to genetic variation, natural selection, adaptation, common ancestry, environmental change, and selective breeding
- Family letter to introduce parents and caregivers to the unit and explain what students will be learning and why (as well as how to watch the full episodes at home)
- Answer keys for each set of worksheets
Whether you're introducing evolution for the first time, reinforcing a concept you're already teaching, or looking for a multimedia station or jigsaw activity, this guide gives you the tools to make Evolution part of your science classroom.
With this interactive unit, you will explore the evolutionary journey of five animals — the elephant, ostrich, bat, dolphin, and horse — through incredible videos from BBC's new documentary series, Evolution.
BBC's Evolution explores the pivotal evolutionary breakthroughs that shaped every living thing. Rather than telling a simple chronological history, each episode traces the deep evolutionary journey of one iconic modern animal, revealing how survival, chance, innovation and partnership have driven life’s astonishing diversity. The scientific research underpinning Evolution involved collaborating more than 600 scientists worldwide. At the heart of the series are the immersive VFX sequences that let viewers meet the characters that shaped the evolution of life on Earth today.
How to get started:
Start with any of the five animals. Click on each of three hotspots in its section (in order from top to bottom). As you explore how changes in body structure, reproduction, feeding, sensory systems, nervous systems, and movement opened new possibilities for survival and helped organisms adapt to changing environments, use the printable student worksheets (see Related Resources) for each animal to guide you.
In Dolphin Schools and Cory’s Shearwater Are a Team Effort for Survival, narrator Sir David Attenborough captures an extraordinary sight of 500 dolphins leaping through the water and then hunting in coordination with Cory’s shearwaters — seabirds in the waters around the Azores, volcanic islands located 1,000 miles west of Portugal. The dolphins use teamwork to herd schools of mackerel toward the water's surface, where the fish become easy prey for the diving shearwaters. This video is excerpted from BBC’s Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.
In The Botos of the Amazon, narrator Sir David Attenborough introduces us to an unusual type of dolphin. The boto lives in a river, hunts fish in shallow water, and lifts rocks to impress females! This video is excerpted from BBC's Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.
In Orca Life and Hunting Skills, narrator Sir David Attenborough explores the world of orcas, the largest and most powerful members of the dolphin family. Follow this pod of nine, including a mother and her calf, as they navigate a narrow channel to hunt elephant seals. Using careful timing and strategy, the mother secures a meal, highlighting the intelligence and skill of these apex predators. This video is excerpted from BBC's Life, a show that explores the remarkable strategies animals and plants use to ensure their survival.
In How Dolphins in Florida Bay Hunt Together, narrator Sir David Attenborough describes bottlenose dolphins’ incredible way of hunting fish in Florida Bay! One dolphin takes charge, stirring up the seafloor to trap fish in a swirling circle. The fish panic and leap out of the water — straight into the mouths of the dolphins! This behavior is passed down through generations, showing how dolphins teach each other to survive in a unique environment. This video is excerpted from BBC's Life, a show that explores the remarkable strategies animals and plants use to ensure their survival.
In Opportunity for Animals as the Tides Ebb and Flow, narrator Sir David Attenborough examines how the Moon’s impact on the Earth and the tides create opportunity for animals, like the bottlenose dolphins who move into shallow waters at high tide to feast on mullets. 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 How Dolphins Hunt in Shallow Water, narrator Sir David Attenborough explains that shallow water is no problem for smart and skilled bottlenose dolphins. See the many strategies they have for hunting fish in just centimeters of water. This video is excerpted from BBC's Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.
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.
Vision transformed the way animals interacted with their surroundings, turning survival into a game of seeing, sensing, and responding. This clip from BBC’s Evolution episode "The Dolphin" travels back to the Cambrian Period, when complex eyes began appearing in many forms, including the prominent eyes of trilobites, and explores how the rise of vision may have driven an evolutionary arms race between predators and prey.
Rare Cambrian fossils also preserve evidence of neural tissue and even brain structures, offering clues to the connection between increasingly sophisticated eyes and increasingly complex brains. From wide-ranging compound eyes to giant camera-like eyes, the video traces the remarkable variety of ways animals have evolved to process the visual world around them.
How does an animal make sense of its surroundings — and what happens when that world changes? This lesson for ages 11–18 examines the evolution of sensory systems and the increasingly sophisticated brains that allow animals to gather, process, and respond to information.
In the BBC video clips from Evolution Episode 4: "The Dolphin," explore the evolution of the eye, changes that made communication between neurons faster, and the development of the mammalian neocortex. Along the way, consider how better ways of detecting and processing information created new opportunities for behavior and survival.
The worksheet activities ask you to connect environmental information to nervous system responses, compare the advantages of vision for predators and prey, and trace the relationship between myelin, faster nerve impulses, information processing, and complex behavior. At the end, you'll return to your initial prediction and use evidence from the lesson to reflect on how sensory challenges and environmental change shaped the evolution of increasingly complex brains.
As the predator-prey arms race intensified in the ancient oceans, fish evolved stronger defenses — and increasingly sophisticated brains. This clip from BBC’s Evolution episode "The Dolphin" examines the armored placoderms, whose fossilized skulls reveal surprisingly complex brains for animals that lived around 400 million years ago. CT scans allow scientists to reconstruct these ancient brains and explore structures involved in movement, balance, and processing information.
The video also explores a remarkable theory about the evolution of myelin, the insulating material that allows nerve signals to travel much faster along neurons. Retroviral DNA may have played a role in triggering the development of myelin in early vertebrates, helping their brains process information more rapidly while freeing them from the need for enormous nerve fibers. This evolutionary innovation helped pave the way for increasingly sophisticated vertebrate brains.
Bring BBC’s Evolution into your classroom with a flexible teaching guide designed to help students investigate how life changes over time. Built around five episodes featuring the elephant, ostrich, bat, dolphin, and horse, the interactive unit combines engaging BBC footage with student worksheets, evidence-based activities, teaching strategies, and extension ideas.
The lessons are structured around the 5E Instructional Model and can be used as a complete five-day learning experience or adapted to support an existing evolution unit. Students make predictions, analyze evidence from video clips, identify patterns, and develop explanations about natural selection, adaptation, genetic variation, and other mechanisms of evolutionary change.
The guide includes:
- Background information and vocabulary for the topic
- How to access and navigate the interactive unit (including videos and worksheets)
- Teacher tips and implementation guidance for using the materials in whole-class, small-group, pair, or individual settings
- Extension activities including an evolution timeline, animal comparisons, and adaptation research.
- NGSS alignment covering middle and high school standards related to genetic variation, natural selection, adaptation, common ancestry, environmental change, and selective breeding
- Family letter to introduce parents and caregivers to the unit and explain what students will be learning and why (as well as how to watch the full episodes at home)
- Answer keys for each set of worksheets
Whether you're introducing evolution for the first time, reinforcing a concept you're already teaching, or looking for a multimedia station or jigsaw activity, this guide gives you the tools to make Evolution part of your science classroom.
With this interactive unit, you will explore the evolutionary journey of five animals — the elephant, ostrich, bat, dolphin, and horse — through incredible videos from BBC's new documentary series, Evolution.
BBC's Evolution explores the pivotal evolutionary breakthroughs that shaped every living thing. Rather than telling a simple chronological history, each episode traces the deep evolutionary journey of one iconic modern animal, revealing how survival, chance, innovation and partnership have driven life’s astonishing diversity. The scientific research underpinning Evolution involved collaborating more than 600 scientists worldwide. At the heart of the series are the immersive VFX sequences that let viewers meet the characters that shaped the evolution of life on Earth today.
How to get started:
Start with any of the five animals. Click on each of three hotspots in its section (in order from top to bottom). As you explore how changes in body structure, reproduction, feeding, sensory systems, nervous systems, and movement opened new possibilities for survival and helped organisms adapt to changing environments, use the printable student worksheets (see Related Resources) for each animal to guide you.
In Dolphin Schools and Cory’s Shearwater Are a Team Effort for Survival, narrator Sir David Attenborough captures an extraordinary sight of 500 dolphins leaping through the water and then hunting in coordination with Cory’s shearwaters — seabirds in the waters around the Azores, volcanic islands located 1,000 miles west of Portugal. The dolphins use teamwork to herd schools of mackerel toward the water's surface, where the fish become easy prey for the diving shearwaters. This video is excerpted from BBC’s Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.
In The Botos of the Amazon, narrator Sir David Attenborough introduces us to an unusual type of dolphin. The boto lives in a river, hunts fish in shallow water, and lifts rocks to impress females! This video is excerpted from BBC's Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.
In Orca Life and Hunting Skills, narrator Sir David Attenborough explores the world of orcas, the largest and most powerful members of the dolphin family. Follow this pod of nine, including a mother and her calf, as they navigate a narrow channel to hunt elephant seals. Using careful timing and strategy, the mother secures a meal, highlighting the intelligence and skill of these apex predators. This video is excerpted from BBC's Life, a show that explores the remarkable strategies animals and plants use to ensure their survival.
In How Dolphins in Florida Bay Hunt Together, narrator Sir David Attenborough describes bottlenose dolphins’ incredible way of hunting fish in Florida Bay! One dolphin takes charge, stirring up the seafloor to trap fish in a swirling circle. The fish panic and leap out of the water — straight into the mouths of the dolphins! This behavior is passed down through generations, showing how dolphins teach each other to survive in a unique environment. This video is excerpted from BBC's Life, a show that explores the remarkable strategies animals and plants use to ensure their survival.
In Opportunity for Animals as the Tides Ebb and Flow, narrator Sir David Attenborough examines how the Moon’s impact on the Earth and the tides create opportunity for animals, like the bottlenose dolphins who move into shallow waters at high tide to feast on mullets. 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 How Dolphins Hunt in Shallow Water, narrator Sir David Attenborough explains that shallow water is no problem for smart and skilled bottlenose dolphins. See the many strategies they have for hunting fish in just centimeters of water. This video is excerpted from BBC's Planet Earth, a breathtaking documentary series that highlights the natural wonders of our planet.