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Episode Guide
- 1. Invasion of the Land Nov 23, 2005
- Millipedes, slugs and worms.
- 2. Taking To The Air Nov 30, 2005
- Tale of the first animals ever to take to the air.
- 3. The Silk Spinners Dec 7, 2005
- Silk is the invertebrates' great invention, with many insects using it in a great variety of ways.