2. ANIMALS CLASSIFICATION
 Animals are classified according to different
characteristics:





What they eat: carnivorous, herbivorous or omnivorous.
Where they live: terrestrial or aquatic.
How they interact with humans: wild or domestic.
The way they are born: oviparous or viviparous.
If they have internal skeleton or not: invertebrate
or vertebrate.

3. CARNIVOROUS ANIMALS
 They eat other animals.
 These are some carnivorous animals:

4. HERBIVOROUS ANIMALS
 They eat plants: roots, stems, leaves,
flowers, fruits...
 These are some herbivorus animals:

5. OMNIVOROUS ANIMALS
 They eat other animals and plants.
 These are some omnivorous animals:

6. TERRESTRIAL ANIMALS
 They mainly live on land. Sometimes
they can get into water.
 They can move in different ways and
use different body parts:
 Walking (legs)
 Flying (wings)
 Crawling/ sliding (body)

7. AQUATIC ANIMALS
 They live in water.
 They use their tails, fins or tentacles to
swim.
 Some of them don’t swim.

8. WILD ANIMALS
 They live freely in their natural
environment.

9. DOMESTIC ANIMALS
 They live with humans:
 Keep us company
 Help us at work
 Give us food

10. VIVIPAROUS ANIMALS
 They are born from their mother’s
womb.
 After being born, the babies drink milk
from their mothers.

11. OVIPAROUS ANIMALS
 They are born from eggs.
 Some of them incubate their eggs after
laying them, they keep them warm.

12. VERTEBRATE ANIMALS
 They have got an internal skeleton.
 They have got different body parts:




Head
Trunk: where the backbone and ribs are
Tail: an extension of the backbone.
Limbs: some animals have got legs or arms
or fins or wings. Some haven’t got limbs.

13. VERTEBRATE ANIMALS
 They are divided into 5 groups:





Mammals
Birds
Reptiles
Amphibians
Fish

14. VERTEBRATE ANIMALS
MAMMALS
 Most of them are viviparous.
 They drink their mother’s milk when they are born.
 They are warm-blooded animals.
 They have got 4 limbs.
 They breathe through lungs.
 Can be aquatic or terrestrial.
 Some of them can fly.
 Most of them are covered by hair.

15. VERTEBRATE ANIMALS
MAMMALS
These are some mammals:

16. VERTEBRATE ANIMALS
BIRDS
 They are oviparous. They incubate eggs in nests.
 They are covered by feathers.
 They are warm-blooded animals.
 They have got wings.
 Not all of them can fly.
 They have got a beak.
 They breathe through lungs.
 Some of them live in water and on land.

17. VERTEBRATE ANIMALS
BIRDS
These are some birds:

18. VERTEBRATE ANIMALS
REPTILES
 They are oviparous.
 They are covered by scales.
 They are cold-blooded animals.
 Some of them have got legs and some of
them haven’t.
 They can walk, swim or crawl.
 They breathe through lungs.

19. VERTEBRATE ANIMALS
REPTILES
These are some reptiles:

20. VERTEBRATE ANIMALS
AMPHIBIANS
 They are oviparous.
 They have got damp skin.
 They are cold-blooded animals.
 They live in water and on land.
 They breathe through lungs and their skin.
 They eat insects and small animals.
 They swim, walk or skip.

21. VERTEBRATE ANIMALS
AMPHIBIANS
 Since they go out of the egg until they become adults,
amphibians go through a process called metamorphosis.

22. VERTEBRATE ANIMALS
AMPHIBIANS
These are some amphibians:

23. VERTEBRATE ANIMALS
FISH
 They are oviparous.
 They are covered by scales.
 They are cold-blooded animals.
 They live in water.
 They breathe through gills.
 They swim with their fins and tails.

24. VERTEBRATE ANIMALS
FISH
These are some fish:

25. INVERTEBRATE ANIMALS
 They have not got an internal skeleton.
 Most of them have got something to
protect their body:
 Exoskeleton.
 Shell.
 Anything.
 There are different types of invertebrate
animals:
 Arthropodes.
 Mollusks

26. INVERTEBRATE ANIMALS
ARTHROPODES
They are the most numerous animals on
Earth.
They are covered by an exoskeleton. They
are classified into:
 Insects
 Arachnids
 Crustaceans

27. INVERTEBRATE ANIMALS
ARTHROPODES
 Insects:
 Have got 6 legs.
 Have got 3 body parts: head, thorax and
abdomen.
 Have got antennae.
 Some of them have got wings.
 Most
insects
go
through
the
metamorphosis process.

28. INVERTEBRATE ANIMALS
METAMORPHOSIS

29. INVERTEBRATE ANIMALS
ARTHROPODES
 Insects:
These are some insects:

30. INVERTEBRATE ANIMALS
ARTHROPODES
 Arachnids:
 Have got 8 legs.
 Have got 2 body parts: cephalothorax
and abdomen.
 Haven’t got antennae.
 Haven’t got wings.

31. INVERTEBRATE ANIMALS
ARTHROPODES
 Crustaceans:
Most of them are aquatic and breathe
through gills.

32. INVERTEBRATE ANIMALS
MOLLUSKS
They are soft-bodied animals, usually
protected by a shell.