00:01
So according to evolution, the organisms that are able to survive the mass extinction are the fittest organisms to survive in the environment.
00:11
So there is a notion that is survival of fittest that is explained by various naturalists when explaining the theory of evolution.
00:28
So the survival of the fittest is a characteristic when the population explains.
00:33
Experiences a bottleneck.
00:36
A bottleneck is a condition where the population drastically drops due to a certain event during the evolution.
00:45
So the population decreases during a bottleneck and this enables the fit organisms or the organisms which favorable characteristics to survive.
00:56
So fittest organisms are usually having favorable characteristics.
01:02
For example, let's is take a giraffe.
01:05
So the giraffe were usually first short neck.
01:10
So when the giraffe's population increased there was shortage of vegetation.
01:17
So the shortage of food that is available for short neck giraffe were reduced...