- It is thought that there are between 6 and 10 million species of insect in the world.
- The oldest insect fossil dates back 400 million years. It is thought that they are the first group of animals to make the transition from sea to land. They were around about 170 million year before the dinosaurs!
- Insects are known an invertebrates as they lack a skeletal structure like vertebrates. Instead they have a hard exo-skeleton on the outside of their bodies.
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