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.
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.
We live in a time where we can get up-to-the-minute updates. So how do we make sure we’re getting the most current and most accurate news? Introduce your students to the concept of developing news stories. In this lesson, they’ll explore what can cause the news to change and how to distinguish changing information from corrected information.
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.
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.
We live in a time where we can get up-to-the-minute updates. So how do we make sure we’re getting the most current and most accurate news? Introduce your students to the concept of developing news stories. In this lesson, they’ll explore what can cause the news to change and how to distinguish changing information from corrected information.