Page 19 - science

Sorting some unusual animals

In this lesson you will learn about some animals
that are not easy to sort into groups. Key words

breathe

Some animals look as if they belong to one group. feed

But look closely and you will have to think again!

Think back Look at each photograph.

Talk to your partner Decide which vertebrate class each

about the features you animal belongs to.
used to group vertebrates. Why are the animals unusual?

I live in the sea. I live in the sea for half my life.

I must come to the surface I must come to the surface to
to breathe. I feed my offspring breathe. I have feathers.

on milk. Which group do Which group do I belong to?
I belong to?

I have wings. I can fly.
I have fur. Which

group do I belong to?

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■ For more activities, go to Workbook 1 page 20.