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The Making of the Fittest: Natural Selection in Humans (Spanish)

14 minutes 6 seconds

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In some parts of the world, there is an intimate connection between the infectious parasitic disease "malaria" and the genetic disease "sickle-cell anemia." A keenly observant young man named Tony Allison, working in East Africa in the 1950s, first noticed the connection and assembled the pieces of the puzzle. His story stands as the first and one of the best understood examples of natural selection, where the selective agent, adaptive mutation, and molecule involved are known-and this is in humans to boot. The protection against malaria by the sickle-cell mutation shows how evolution does not necessarily result in the best solution imaginable but proceeds by whatever means are available.

Media Details

Runtime: 14 minutes 6 seconds

The Making Of The Fittest
Episode 1
10 minutes 24 seconds
Grade Level: 10 - 12
The Making Of The Fittest
Episode 2
13 minutes 10 seconds
Grade Level: 10 - 12
The Making Of The Fittest
Episode 3
14 minutes 3 seconds
Grade Level: 10 - 12
The Making Of The Fittest
Episode 4
15 minutes 26 seconds
Grade Level: 10 - 12
The Making Of The Fittest
Episode 5
15 minutes
Grade Level: 10 - 12
The Making Of The Fittest
Episode 6
10 minutes 29 seconds
Grade Level: 10 - 12
The Making Of The Fittest
Episode 7
14 minutes 6 seconds
Grade Level: 10 - 12