CLASSIFICATION

ANIMALS

VERTEBRATES• HAVE A SKELETON WITH

bones, SPINAL COLUMN AND SKULL

INVERTEBRATES• DON´T HAVE INNER

SKELETON WITH SPINAL COLUMN AND SKULL.THEY DON´T HAVE BONES.

• ARE COMPOSED BY :

MAMMALS

• THE MAJORITY ARE LAND ANIMALS

• THEY BREATHE OXYGEN USING THEIR LUNGS.

• THEY GIVE BIRTH TOLIVE YOUNG VIVIPAROUS• THEY NURSE THEIR YOUNG

WITH MILK

• THEIR SKIN IS COVERED WITH FUR OR HAIR

EXCEPTIONS THE WHALETHE DOLPHIN

VERTEBRATES

HOW DO MAMMALS MOVE?

MOST USE LIMBS

• THEY HAVE FOUR LEGS• THEY MOVE ON THE LAND• HUMANS MOVE USING

TWO LIMBS; OUR LEGS, BUT WE USE ALSO THE ARMS

AQUATIC MAMMALS USE FINS

• SOME MAMMALS USE WINGS

WHAT DO MAMMALS EAT?CARNIVORES HERVIBORES OMNIVORES

HAVE POINTED AND CANINE TEETH FOR TEARING THE MEAT

Lion´s skull

HAVE SHARP TEETH AND MANY MOLARS FOR CHEWING THE

VEGETABLES

Deer´s skull

HAVE A MIXTURE OF POINTED TEETH,

SHARP TEETH AND MOLARS

Human´s skull

• OVIPAROUS: THEIR YOUNG HATCH FROM EGGS

• THEY LIVE IN WATER• THEY BREATHE USING

THEIR GILLS

• THEIR LIMBS ARE FINS • THEIR SKIN IS COVERED BY

SCALES

FISH

• OVIPAROUS THEIR YOUNG HATCH FROM EGGS

• THEY LIVE IN WATER AND LAND• THEY BREATHE THROUGH GILLS

(TADPOLES) AND LUNGS (FROGS)

• TADPOLES MOVE WITH A FIN FROGS WITH LEGS.

• THEY HAVE BARE SKIN(they dont have hair and Fur)

AMPHIBIANS

REPTILES• THEY ARE TERRESTRIAL• THEY BREATHE THROUGH

LUNGS

• THEY COME FROM EGGS• THE MAJORITY HAVE FOUR

LEGS• ARE COVERED BY SCALES

BIRDS• THEY ARE TERRESTRIAL• THEY BREATHE THROUGH

LUNGS

• THEY COME FROM EGGS• THEY HAVE TWO WINGS,

WHICH USE TO FLY( THERE ARE EXCEPTIONS)

• THEIR SKIN IS COVERED WITH FEATHERS