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Iolo's Natural History of Wales The First 200 Million Years Clips

  1. Tracking trails

    Duration: 01:32

  2. Silurian seas

    Duration: 01:29

  3. Hirnantian ice age

    Duration: 01:04

  4. Spore story

    Duration: 01:54

  5. Sea of Snowdon

    Duration: 00:45

  6. Creepy crawlies

    Duration: 01:33

  7. Pioneering plant

    Duration: 02:28

  8. Trilobite treasure

    Duration: 01:43

  9. Time of volcanoes

    Duration: 02:12

  10. Soft-bodied survivors

    Duration: 01:16

  11. Pre-Cambrian Wales

    Duration: 01:34