Complete Simple and Compound Sentences

Is this sentence simple or compound?
Camels belong to a group of animals called mammals.

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A camel has one or two humps on its back, and it has a long curved neck.

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The camel can live in dry desert areas where other large animals cannot live.

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The hump of a camel stores fat, not water.

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A camel's hump can shrink when it goes without food, but a few days of eating and drinking can restore it.

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Camels have thick, hairy coats of fur.

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The desert gets hot during the day, but it cools down at night.

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Baby camels drink their mother's milk and nibble plants right away.

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Because camels are herd animals, they do not like to travel alone.

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Camels may kick or bite when upset.

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