1. Mammals, Reptiles, Fish, Amphibians, and Birds
Animal Classification
Mammals, Reptiles, Fish, Amphibians, and Birds

2. Vocabulary Jeopardy Ectothermic molt Invertebrate Warm-blooded
metamorphosis
Invertebrate
Warm-blooded
incubation
Cold-blooded
Vertebrate
decomposers

3. When an animal gets its heat from outside its body
Ectothermic
When an animal gets its heat from outside its body

4. molt
To shed periodically part or all of a coat or outer covering which is then replaced by a new covering

5. metamorphosis
The series of changes certain animals go through as they develop from eggs to adults; means “having a double life” in Latin.

6. Invertebrate
Lacking a backbone or a spinal column

7. Warm-blooded
Only two kinds of vertebrates –birds and mammals-are warm –blooded. Their blood and body stay the same temperature no matter how cold or hot their surroundings are. These animals become ill or die if their body temperature changes very much.

8. incubation
To keep in a favorable environment for hatching or developing

9. Cold-blooded
Almost all animals are cold-blooded. The temperature of their blood and body changes when their surroundings become warmer or colder.

10. Vertebrate
Having a backbone or a spinal column

11. decomposer
An organism that feeds on or breaks down dead plant or animal matter thus making organic nutrients available in the ecosystem.

12. Warm Blooded Warm and Cold Blooded Cold Blooded
Almost all animals are cold-blooded. The temperature of their blood and body changes when their surroundings become warmer or colder.
Warm Blooded
Only two kinds of vertebrates –birds and mammals-are warm –blooded. Their blood and body stay the same temperature no matter how cold or hot their surroundings are. These animals become ill or die if their body temperature changes very much.

13. Vertebrates or Invertebrates...
Vertebrates have a backbone and invertebrates do not. Without a backbone, a vertebrate’s body would collapse! The largest animals in the world are vertebrates.
Insects have three pairs of legs and a body
segmented into the head, abdomen, and thorax and usually having two pairs of wings.
Aquatic animals have to do with the water.
Terrestrial animals have to do with land.
Microscopic creatures are too small to be seen by the unaided eye but large enough to be studies under a microscope.
Decomposers are animals that feeds on or breaks down dead plant or animal matter.
Frogs and other
amphibians are vertebrates.

14. Invertebrates Insects Arachnids Mollusks: Crustaceans Myriapods
Octopus, squid, jellyfish, clams, oysters, snails, and slugs.
Crustaceans
Myriapods
Centipedes and millipedes

15. Characteristics of Mammals:
1. Warm-blooded, meaning they make their own heat.
2. Have hair on their bodies.
3. Breathe with lungs.
4. Baby mammals need care and feeding—adult mammals take
care of their young.
5. Female mammals produce milk for their young.
6. Most mammals live on land, although some live in the water.
Whales and dolphins are mammals because they breathe with
lungs.
7. Unique mammals:
--Marsupials: kangaroo, wombat have a pouch to carry their
young.
--Duckbill platypus and echidna are the only mammals that lay eggs instead of live birth.

16. Mammals

17. Characteristics of a Reptile
Hatch from eggs~ left to take care of themselves. They are “mini-adults.”
2. Cold-blooded~receive heat from outside (sun or ground).
3. Dry, thick, scaly skin
4. Shed or molt their skin several times a year. New skin grows under the old and loosens it.
5. Vertebrate~with a backbone
6. Great vision~active at night, pupils like slits to see better at night. No eyelids.
7. Go weeks without food!
8. Many colors~most often green or brown.
9. Found all over the world~ often tropical or warm areas.
10. Shape~ most long, thin with pointy snout and long tail.
11. Turtles~ the only reptile with a shell!

18. Reptiles

19. Characteristics of Fish
Some hatch from eggs and are left to take care of themselves.
Some give live birth and are left to take care of themselves.
Skin types: most have scales. Sharks and rays have a thick, non-scaly layer of skin.
Vertebrate~ have a backbone.
No eyelids
Ectothermic~get heat from outside their bodies
Can live in fresh or salt water
Found all over the world
Come in all shapes and sizes
Have fins and a back tail to maneuver through water
Have gills to breathe

20. Fish…

21. There are three main types of fish…
Bony
Sharks and rays
Jawless fish

22. Amphibians Hatch from jelly-covered eggs in water
Go through metamorphosis and live part of their lives in water with gills and part on land
Amphibians are vertebrates with backbones.
Have soft, wet, slimy skin with glands to keep it moist so it doesn’t dry out
Use lungs to breathe but also breathe through their skin
Colors~some are bland and some are bright to warn predators that they are poisonous
Ectothermic animals~get heat from outside the body
Live all over the world near the water

23. Amphibians

24. Amphibians…
Frog
Toad
Newt

25. Characteristics of Birds
Warm-blooded
Most can fly
Feathers~
body temperature, protection of body, attraction of mates, identification of species, molting
Down- soft, fine feathers
Bones~ feathers alone do not permit birds to fly. Birds have extremely lightweight, hollow bones that aid in their flight.
Hard-shelled eggs
Most build nests
Care for their young

26. Birds…

27. What’s the Big Idea?
Animals are classified according to different characteristics, looking at what they have in common.