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Horizon
Season 7 • Episode 22 • Crown of Thorns
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Horizon Season 7, Episode 22: Crown of Thorns
The population explosion of the Crown of Thorns starfish is investigated by Horizon. Watch Horizon Season 7, Episode 22 Crown of Thorns in HD free online. Enjoy high-quality streaming of Horizon Season 7, Episode 22 and share your thoughts in the comments below!
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Episodes
37 episodesJust Another World
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Henry Royce, Mechanic
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A Disease of Our Time - Stress
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A Disease of Our Time - Heart Attacks
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Sex and Sexuality
Horizon exams the current scientific research into human sexual behavior.
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Whose Coast?
In this episode, Horizon reports on how much of the sea coast around Britain is becoming polluted.
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A Much Wanted Child
This episode deals with the problems of infertility and showing the investigations being carried out.
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The Expert Witness
Sir Bernard Spilsbury, a forensic pathologist, talks about the role of the scientific witness in the criminal courts.
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After the Iron Age
A look at some of the work carried out in Britain into the development of new materials for industry.
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Let the Therapy Fit the Crime
This episode of Horizon looks at the question of the treatment of criminals in Britain.
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The World Outside
Horizon reports on the Mental Health Service in Britain.
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In the Beginning was the Word
This episode surrounds the two channels of human communication - verbal and non-verbal.
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The Drifting of the Continents
A Horizon investigation into the research done in Britain and the USA to support the 'Continental Drift' theory.
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A Case of Priority
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The Fretful Elements
This report by Horizon looks into meteorological research in Britain and America.
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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.
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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.
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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.
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A Measure of Uncertainty
Horizon explores the use and role of statistics in modern society and how they are needed for planning.
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The Manhunters
Horizon reveals new evidence found by archaeologists that have now traced our origins back to the extinct ape man of Africa.
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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.
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Crown of Thorns
The population explosion of the Crown of Thorns starfish is investigated by Horizon.
60 min
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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Virus
This is an episode on problems dealing with viral diseases such as measles.
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Water, Water
Horizon looks at the work of scientists as they unravel the problems of providing us with water.
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All Creatures Great and Small
In this story, Horizon investigates the issue of controversial animal experiments between anti-vivisectionists and scientists.
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A Child for a Lifetime
Horizon reports on the future of 30,000 children in Britain that are mentally retarded.
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Something for Our Children
Horizon reports on the work of the British Nature Conservancy and how scientists are trying to find out about nature.
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Million Ton Tanker
This episode of Horizon reports on the revolution in the size of oil tankers showing present and future planned methods of construction.
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The Insect War
Horizon looks at problems caused by the rapid reproduction rate of insects and their increasing resistance to pesticides.
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The Savage Mind
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Tanks
This episode of Horizon investigates the history of tanks in the last fifty years and the dominant role they have played in land warfare.
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Mind the Machine
In this story, Horizon investigates the artificial intelligence of computers by watching a chess game.
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Square Pegs
Horizon examines some of the techniques used by the boom industry of Management Selection.
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Earthquakes, The City that Waits to Die
Horizon investigates the work of geologists and seismologists trying to predict the date of the next great earthquake in San Francisco, California.
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The Man who Talks to Frogs
Horizon reports on some of the pure scientific research work carried out at the Smithsonian Tropical Research institute.
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The Gargantuan Triumph of Science
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