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Spiders Are Not Insects

Insects like ants have three body parts and six legs. Spiders have only two body parts and eight legs, so they are not insects.

In the picture

  1. The insect’s middle part: all 6 legs join here, and its body has 3 parts.
  2. An insect’s leg: 3 on each side, 6 in all.
  3. The spider’s front part: all 8 legs join here, and its body has 2 parts.
  4. A spider’s leg: 4 on each side, 8 in all.

Examples

  • A ladybug in the garden has six legs, so it is an insect.
  • A spider in the corner of a room has eight legs, so it is not an insect.

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Biology, Age 8