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Lesson details

Learning outcome

I can describe the stages in the life cycle of different mammals.

Key learning points

  1. Mammals are animals, they are living things that grow and reproduce
  2. Life cycles of different mammals can be observed over time and/or researched using secondary sources of information
  3. Scientific diagrams are used to show the stages in a mammal’s life cycle
  4. Mammals are born alive from their mother
  5. The stages of a mammal’s life cycle are baby, young and adult

Keywords

  • Mammal - A mammal is a warm-blooded animal that gives birth to live young and has hair or fur.

  • Life cycle - A life cycle is the way in which a living thing changes as it ages.

  • Secondary sources - Secondary sources are texts, images or objects created using information gathered by others.

  • Research - To research something is to find out about it or investigate it carefully.

Common misconception

Pupils may think that humans are not animals, but something different.

When mammals are discussed in the lesson, remind pupils that humans are animals and mammals because of their shared characteristics.

Teacher tip

Encourage children to research an animal that they are personally interested them and give them opportunities to share their findings and interesting facts with their peers.

Equipment

Non-fiction texts about mammal life cycles and/or access to the internet for research.

Content guidance

Risk assessment required - equipment

Supervision

Adult supervision required

Licence

This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
except where otherwise stated. See Oak's terms & conditions
(Collection 2).

Lesson video

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Prior knowledge starter quiz

6 Questions

Q1.
What is an animal?

A living thing that has fur.
Correct answer: A living thing that eats other animals or plants.
A living thing that has a face.
A living thing that makes its own food.

Q2.
Mammals have backbones. This means they belong to a group of animals called .

Correct Answer: vertebrates, vertebrate

Q3.
Which of these animals is not a mammal?

rhinoceros
orca whale
Correct answer: frog
bat

Q4.
Which of these words means a fully-grown animal?

adolescent
infant
young
Correct answer: adult

Q5.
What is a life cycle?

What happens to an animal's body after it dies.
Correct answer: The changes a living thing goes through as it grows.
The way an animal is born.

Q6.
Which of these is not true of mammals?

They are warm-blooded.
They have hair or fur.
Correct answer: They have feathers.
They are vertebrates.

6 Questions

Q1.
Which of these statements about humans is false?

Correct answer: Humans are cold-blooded.
Humans are mammals.
Humans have a life cycle.
Humans are vertebrates.

Q2.
How many stages are there in the mammal life cycle?

Correct Answer: 3, three

Q3.
Which of these is not part of the mammal life cycle?

young
adult
baby
Correct answer: egg

Q4.
A fully grown mammal is called an .

Correct Answer: adult, Adult

Q5.
Starting with the youngest, put the stages of the mammal life cycle in order.

1 - baby
2 - young
3 - adult

Q6.
Which of these would not help us to learn about animal life cycles?

Observing how animals change over time.
Researching animals using secondary sources.
Correct answer: Looking at one photograph of one animal.
Looking at a life cycle diagram.

To help you plan your 5 science lesson on: Mammal life cycles, download all teaching resources for free and adapt to suit your pupils' needs...