1. Vertebrates
Animals with a Backbone or Spinal Column:

2. Fish 20,000 different species of fish Fish use gills to breathe
Group: Pisces
20,000 different species of fish
Fish use gills to breathe
Lay eggs
Scales cover body

3. Amphibians Class: Amphibia Amphibians lay their eggs in water
Breathe through their skin
Amphibians body temperature changes with
its environment
Amphibians hibernate during the winter

4. Reptiles Class: Reptilia Live on land and water Cold blooded animals
Lay eggs
Scales cover their bodies

5. Birds Class: Aves Over 8,000 species.
3 major differentiating characteristics: wings for flight, feathers, and a beak rather than teeth
Vertebrate skeleton for flight
Bones and skull are very thin, making their bodies extremely light.
Lay eggs

6. Mammals Class: Mammalia Land Mammal Hair or fur covers body
Regulated body temperature
Give birth to young
Walk on 4 legs
Water mammals
Swim with fins or tails

7. Marsupials Order: Marsupialia Members of the mammal family
Different from other mammals because they have an abdominal pouch to carry their young
At birth, marsupial babies are not fully developed. The baby's hind legs are just nubs. The baby lives and continues to develop in the mother's pouch. The pouch, or marsupium, also has the mother's mammary glands for feeding the baby.

8. Primates Order: Primates Members of the mammal family
Humans are part of the primate family
Primates have several distinctive features that separate them from other mammals
Primates have well developed hands and feet, with fingers and toes
Primate eyes are forward in the head giving them stereoscopic vision
Primates also have large, highly developed brains
-distinguish colors
-develop complex language and communication skills

9. Rodents Order: Rodentia Members of the mammal family
Largest family of mammals
"gnawing animal," because of their large incisor teeth and the way they eat.
The two long pairs of incisors are used like chisels to gnaw on hard foods like nuts and wood.

10. Cetaceans Order: Cetacea Members of the mammal family
sparse covering of hair
they cannot breathe under water. They must come to the surface to breathe air
They breathe through a blowhole, or nostrils, on the top of their head.