BIRDS
Birds are interesting
flying animals. They are vertebrates and warm blooded animals. They belong to
aves class and they can be found all over the world.
Birds breath with their air pocket. Beside as respiration organ, air pocket also can enlarge or reduce their weight when flying or swimming.
There are many kinds of birds. Earth bird has special characteristic. They have different morphology according to their food and their habitat. Some of them eat seeds, pollen, fish or meat. There are some species that live in land and the others live in water.
Birds breath with their air pocket. Beside as respiration organ, air pocket also can enlarge or reduce their weight when flying or swimming.
There are many kinds of birds. Earth bird has special characteristic. They have different morphology according to their food and their habitat. Some of them eat seeds, pollen, fish or meat. There are some species that live in land and the others live in water.
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