Unit 5 A Bug ’ s Sleep

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Unit 5 A Bug’s Sleep Please refer to page 2 9

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Unit 5 A Bug ’ s Sleep. Please refer to page 29. All animals need sleep … .or do they? Even mammal needs it, as well as birds and reptiles, such as snakes. Amphibians, like frogs, do not sleep. But what about insects? Do they need sleep?. - PowerPoint PPT Presentation

Transcript of Unit 5 A Bug ’ s Sleep

Page 1: Unit 5 A Bug ’ s Sleep

Unit 5A Bug’s Sleep

Please refer to page 29

Page 2: Unit 5 A Bug ’ s Sleep

All animals need sleep….or do they? Even mammal needs it, as well as birds and reptiles, such as snakes. Amphibians, like frogs, do not sleep. But what about insects? Do they need sleep?

Page 3: Unit 5 A Bug ’ s Sleep

Scientists have been trying to discover the truth about insect ”sleep” behavior for years. Scientists first thought insects did not need sleep. According to them, the insect brain wasn’t complex enough to need it.

Page 4: Unit 5 A Bug ’ s Sleep

Scientists said that some kinds of brain activity, like dreaming, were sleep behaviors. Insects do not dream, so scientists said that they did not sleep. They believed that insects “rested” instead.