1. ANIMALS (VERTEBRATES)
Fish
They are acuatic vertebrates that can live in salt water and in fresh water
They breathe through gills
They have elongated shape to move through water with less resistance (Hydrodynamic shape)
Their body temperature changes with the environment (they are cold blooded animals)
Bony fish (Salmon, trout) Ovíparos
Cartilaginous fish
(Shark, rays)
Ovovivíparos

2. Amphibians Anuros Urodelos (frogs and toads) (Salamanders)
- They are animals capable of living in terrestrial environments but they need to be near aquatic or humid environments.
Adults breathe through lungs and throgh skin because they are terrestrials. Youngs breathe through gills because they are aquatics
They are cold blooded animals
Two types:
Anuros
(frogs and toads)
Urodelos
(Salamanders)
The frog’s metamorphosis (To change into adults):

3. Reptiles Crocodiles Lizards Turtles Snakes
Most of them live on land, but some live in water
They breathe through lungs
They reproduce by internal fertilization. Female lay eggs from which babies emerge.
They are covered with scales.
They are cold blooded animals (They have to sunbathe to warm the body)
Lizards
Turtles
Snakes

4. Birds Wing with feathers skull Beak Penguins Tail Neck Ostrich Leg
They have a beak
Their body is covered with feathers
They are hot blooded animals (Their internal body temperature is always the same)
They breathe through lungs
They lay eggs (oviparous)
Some of them can fly because:
- They have wings
- They have hollow and light bones. The lungs go into their bones (air sacs) and help them to breathe while flying.
- They have an aerodynamic shape
Wing with feathers
skull
Beak
Penguins
Tail
Neck
Ostrich
Leg
chicken
Dove

5. Mammals Mouse Monkey Whale (Gorilla) Bat
They have four limbs that are adapted to climb, run, swim or fly
Their body is covered with hair
They are hot blooded animals (Their internal body temperature is always the same) (Homeotermos)
They breathe through lungs
Babies grow into their mothers (viviparous) and females feed their babies with milk produced by mammary glands
Mouse
Monkey
(Gorilla)
Whale
Bat

6. Look online information about “ornitorrincos”:
Vertebrates
(Type)
Shape of the body
Fertilization
(inner, outer)
Embrionary development (oviparous, ovoviviparous, viviparous)
Cold or hot blooded animal)
Body covered by…....
Breathe through….
Limbs
Three examples
Look online information about “ornitorrincos”:
-What type of vertebrate animal is it?
-Why this animal is so strange?