0:00
Hello everyone.
00:01
And today we will be discussing geographic barriers and allah patrick speciation as well as how a population can divert can diverge in colors or have to populations that divergent colors and ultimately join up at the end and what the cost for that is.
00:18
So, for instance, here's a river and just bad.
00:28
Yeah, here we go.
00:29
And there are two populations on either side of the river.
00:32
So population one let's say it possesses a red coloration like so and population to on the other side possesses a green coloration.
00:50
And so i should have actually chosen yellow.
00:53
So i could have made it orange.
00:55
But that's all right.
00:57
Uh so we have these on two sides and they're separated by this river.
01:00
So therefore they cannot mate.
01:02
There is no gene flow between them and this would be assuming that they were once part of the same population.
01:09
This would be assuming that they were experiencing alot patrick speciation.
01:15
Hello patrick speed.
01:20
See patients...