1. By Cassie Nousen and Brian Kinaschuk
Animals
By Cassie Nousen and Brian Kinaschuk

2. Directions
Click around to see a review about animals. If you are unsure what a word means click on it for the definition. If you would like to see if any other categories of animals have the same characteristics (egg-laying for example) click on the box to the right of the word. Have fun!

3. Main Menu Amphibians Mammals Reptiles References Game Aves (Birds)
Pisces (Fish)

4. Mammals Warm Blooded Covered with hair or fur Don’t lay eggs
Provide milk for their babies
Fertilize internally
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5. Amphibians Lay eggs Cold blooded Fertilize externally
Live on land or in water
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6. Reptiles Reptiles Cold Blooded Fertilize internally Have scales
Lay eggs
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7. Pisces (Fish) Live only in water Have scales Lay eggs
Fertilize externally
Cold Blooded
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8. Aves (Birds) Have feathers Warm blooded Lay eggs
Internal Fertilization
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9. Warm Blooded
When an animal is warm blooded, it means that the temperature of their blood stays almost the same temperature all the time. For example a human’s blood will almost always be 98.6 degrees. Unless a person is ill, the internal temperature will remain within one or two degrees of the constant temperature (98.6)
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10. Cold Blooded
An animal is cold blooded when their blood stays the same temperature as the water or air around them. So as the water or air temperature changes, so does their blood temperature.
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11. Fertilize internally
When animals fertilize internally, it means that both the male and female have to be present in order for the babies to be made.
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12. Fertilize Externally
Both the male and female don’t have to be present at the same time to make babies. For example, a female fish may drop all her eggs then a couple hours later the male fish may come fertilize the eggs.
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13. All cold blooded animals
Fish
Amphibians
Reptiles
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14. All warm blooded animals
Mammals
Aves (Birds)
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15. All animals with scales
Pisces (Fish)
Reptiles
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16. All animals who lay eggs
Pisces (Fish)
Aves (Birds)
Reptiles
Amphibians
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17. All animals that have live births
Mammals
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18. All external fertilizers
Pisces (Fish)
Amphibians
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19. All internal fertilizers
Mammals
Aves (Birds)
Reptiles
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20. References
(Game)
Campbell, Neil A., Jane B. Reece, Eric J. Simon. Essential Biology with Physiology. Pearson, 2004.