22
Living things
Vertebrate groups
Compare an
elephant and a
mouse. What’s
the same? What’s
different?
1
Read and find one or more groups of
vertebrates that:
a)
have dry scaly skin
e)
breathe with lungs
b)
breathe with gills
f)
live in water and on land
c)
have feathers
g)
have hair or fur
d)
feed their babies
h)
live on land and in
with milk
the air.
R E A D & T H I N K
We can classify vertebrates into five groups:
fish
,
amphibians
,
reptiles
,
birds
and
mammals
. Animals
in each group have common characteristics.
Mammals
Mammals have hair or
fur
. They
breathe
with
lungs
and they usually have four legs. Mammals feed
their babies with milk. Most mammals live on land. Some mammals live in water, for example dolphins.
But only one mammal, the bat, can fly!
Amphibians
Amphibians have
moist skin
. When they’re young they breathe with gills, but later they develop lungs.
They can live on land or in water. Adult amphibians have four legs.
Fish
Fish live in water. They have
scales
and use
fins
to swim. They breathe with
gills
. There are more than
30 000 known types of fish in the world.
A chimpanzee is
a mammal.
Sharks
are fish.
A toad is
an amphibian.
A lion is
a mammal.
