Episode
Horizon: Crown of Thorns
Overview
The population explosion of the Crown of Thorns starfish is investigated by Horizon.
Details
- Series
- Horizon
- Season
- Season 7
- Episode
- Episode 22
- Air date
- 1970-08-31
- Runtime
- 60 min
Episode context
Crown of Thorns is Episode 22 in 1970 of Horizon. It aired on 1970-08-31. The runtime is 60 min.
Previous / Next
Episode 21: Don't Get Sick in America
In this episode, Horizon reports on how the TV series "Man and Science Today" compares the British National Health System with the private health system in the USA.
Episode 23: Noah's Ark in Kensington
Horizon brings you the history and modern day functions of the Natural History museum in Kensington, Britain.
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Episode 20: The Manhunters
Horizon reveals new evidence found by archaeologists that have now traced our origins back to the extinct ape man of Africa.
Episode 24: Virus
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Episode 19: A Measure of Uncertainty
Horizon explores the use and role of statistics in modern society and how they are needed for planning.
Episode 25: Water, Water
Horizon looks at the work of scientists as they unravel the problems of providing us with water.
Episode 18: Wolves and Wolfmen
This a a report by Horizon on the research in the USA and Canada into the habits of the wolf in its natural surroundings and in captivity.
Episode 26: All Creatures Great and Small
In this story, Horizon investigates the issue of controversial animal experiments between anti-vivisectionists and scientists.
Episode 17: Only Skin Deep
On this episode of Horizon, the science behind the cosmetic industry and the social and psychological importance of beauty and fragrance is revealed.
Episode 27: A Child for a Lifetime
Horizon reports on the future of 30,000 children in Britain that are mentally retarded.
Episode 16: One Man's Meat
An investigation by Horizon reveals information about the use of artificial additives and preservatives in the manufacture of modern processed foods.
Episode 28: Something for Our Children
Horizon reports on the work of the British Nature Conservancy and how scientists are trying to find out about nature.