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When it comes to the forces of evolution, there's four that can be identified.
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First one we have is a mutation.
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So mutation is seen up here on the top left with this snake here.
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And you can know and see that there's something wrong with the snake.
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There's something different.
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It has two heads compared to one that it's supposed to have.
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And this is an example of a mutation.
00:23
So mutation is when there's just a change in structure of a gene.
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And then that tends to have a different, let's say, that is exposed.
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So in this case, in the gene, where it was giving instructions for the head, it changed all of a sudden where there was two heads that had appeared.
00:45
We also see this with common with legs.
00:48
Think of a four -legged animal like a goat.
00:51
Sometimes a mutation occurs where they grow a fifth leg.
00:56
This can also be done in, let's say, maybe eye color where there's two different color eyes all of a sudden or maybe skin tone, hair color, things like that...