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Horizon
Loading…HorizonSeason 7 · Episode 22 — Crown of Thorns
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Season 7 · Episode 22S7 · E22Crown of Thorns

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Episodes

37 in 1970

  1. 1Just Another World60 min · 1970
  2. 2Henry Royce, Mechanic60 min · 1970
  3. 3A Disease of Our Time - Stress60 min · 1970
  4. 4A Disease of Our Time - Heart Attacks60 min · 1970
  5. 5Sex and Sexuality60 min · 1970
  6. 6Whose Coast?60 min · 1970
  7. 7A Much Wanted Child60 min · 1970
  8. 8The Expert Witness60 min · 1970
  9. 9After the Iron Age60 min · 1970
  10. 10Let the Therapy Fit the Crime60 min · 1970
  11. 11The World Outside60 min · 1970
  12. 12In the Beginning was the Word60 min · 1970
  13. 13The Drifting of the Continents60 min · 1970
  14. 14A Case of Priority60 min · 1970
  15. 15The Fretful Elements60 min · 1970
  16. 16One Man's Meat60 min · 1970
  17. 17Only Skin Deep60 min · 1970
  18. 18Wolves and Wolfmen60 min · 1970
  19. 19A Measure of Uncertainty60 min · 1970
  20. 20The Manhunters60 min · 1970
  21. 21Don't Get Sick in America60 min · 1970
  22. 22Crown of ThornsNow playing
  23. 23Noah's Ark in Kensington60 min · 1970
  24. 24Virus60 min · 1970
  25. 25Water, Water60 min · 1970
  26. 26All Creatures Great and Small60 min · 1970
  27. 27A Child for a Lifetime60 min · 1970
  28. 28Something for Our Children60 min · 1970
  29. 29Million Ton Tanker60 min · 1970
  30. 30The Insect War60 min · 1970
  31. 31The Savage Mind60 min · 1970
  32. 32Tanks60 min · 1970
  33. 33Mind the Machine60 min · 1970
  34. 34Square Pegs60 min · 1970
  35. 35Earthquakes, The City that Waits to Die60 min · 1970
  36. 36The Man who Talks to Frogs60 min · 1970
  37. 37The Gargantuan Triumph of Science60 min · 1970
S7 · E22Horizon

Crown of Thorns

7.5Documentary19641h 0m

The population explosion of the Crown of Thorns starfish is investigated by Horizon.

Up nextNoah's Ark in KensingtonS7 · E23 · 60 min

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