The document divides animals into two main groups and then further divides vertebrates into five subgroups. It provides details on the key characteristics of mammals, birds, reptiles, amphibians, and fish, including how they reproduce, breathe, and their physical features. Mammals are described as having fur or hair and feeding their young with milk. Birds are noted as being oviparous and having feathers and wings. Reptiles are outlined as having scales and some having no limbs. Amphibians undergo metamorphosis and breathe through gills or skin. Fish are described as mostly oviparous and having gills, scales, and fins to breathe and protect their bodies.

1. Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 4-5 ANIMALS
Estefanía López Santos 1
ANIMALS can be divided into 2 groups:
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2. Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 4-5 ANIMALS
Estefanía López Santos 2
And they can be divided into 3 groups:

3. Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 4-5 ANIMALS
Estefanía López Santos 3
Vertebrates can be divided into 5 groups:
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4. Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 4-5 ANIMALS
Estefanía López Santos 4
•Mammals are vertebrates.
•Most mammals are viviparous.
•Mammals can be carnivores, herbivores or omnivores.
•Baby mammals drink their mother´s milk.
•Mammals breathe by using their lungs.
•They have fur or hair.
•Most mammals have 4 legs and live on land, but some mammals live in water.
Mammals(

5. Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 4-5 ANIMALS
Estefanía López Santos 5
•Birds are vertebrates.
•They are oviparous.
•Birds can be carnivores, herbivores or omnivores.
•Adult birds find food for their babies.
•Birds breathe by using their lungs.
•They have wings and feathers that are waterproof, but not all birds can fly.
•Birds have beaks.
Birds(
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6. Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 4-5 ANIMALS
Estefanía López Santos 6
• Reptiles are vertebrates.
•Most reptiles are oviparous.
•They can be carnivores or omnivores.
•Baby reptiles look like adult reptiles.
•Reptiles breathe by using their lungs.
•They have scales.
•Most have 4 limbs and a tail, but some have no limbs.
Reptiles(
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7. Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 4-5 ANIMALS
Estefanía López Santos 7
•Amphibians are vertebrates.
•They are oviparous.
•Most amphibians are carnivores.
•Baby amphibians live and grow in the water.
They change through a metamorphosis into adults.
•Baby amphibians breathe by using their gills.
Adults breathe by using their lungs or skin.
•They have moist skin.
•Most amphibians have 4 limbs.
Amphibians(
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8. Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 4-5 ANIMALS
Estefanía López Santos 8

9. Colegio Bilingüe La Asunción Natural Science 3º prim. Unit 4-5 ANIMALS
Estefanía López Santos 9
•Fish are vertebrates.
•Most fish are oviparous.
•Fish can be carnivores, herbivores or omnivores.
•They breathe by using their gills.
•They have scales that protect their body.
•They have fins and tail.
Fish(
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