00:01
Hello, students.
00:02
First question is about the increased brain size in primate.
00:06
Why it was required by brain size in primate which involve ape and humans as well.
00:13
So human monkeys, etc.
00:15
They are in primates.
00:17
Why they have bigger brains? and there are different options related to that.
00:22
Importance of intelligence results in nursing development in behavioral complexity and shorter development period to accommodate energy expenditure of large.
00:31
Brain, extended period of nursing and increasing behavioral complexity, importance of intelligence in the primate evolution.
00:40
Primate evolution.
00:44
So let's take the look at the answer.
00:47
So we know that as brain size evolve, it is related to the bigger body, bigger body size.
00:57
So intelligence in that time, intelligence in that time was required to survive.
01:03
Was required to survive.
01:07
So obviously the brain had to evolve, had to evolve in that type.
01:12
So they became more intelligent.
01:15
More intelligent and later on, when their social group, when their interactions started with other groups, when they started living together, the bigger the social group they have, the more complex social interaction become.
01:32
More complex social interaction becomes so for all these things the primate have a big brain primate have a big brain so during the evolution during the evolution so evolution is a gradual process which occurs slowly so all these things added primate have bigger brain because of the importance of intelligence in the primate evolution results in nursing and the in the behavioral complexity.
02:05
So this is our first answer and this is the correct answer.
02:10
This is the correct answer.
02:12
Because as they started to live together, they had to interact with each other.
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That is why brain had to develop in certain way to make them more intelligent.
02:22
To make them more intelligent.
02:23
Next question is about the terutality.
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That is more where resources are plentiful.
02:30
Next is the behavior in the way.
02:33
All primates then is the only in male primates over food emerge as long as the benefit of defending outwe the coast.
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So first option is incorrect and second is behavior in all primates.
02:48
No, this is not universal.
02:51
This is not universal means this is not true.
02:55
Only in male primates over food.
02:58
No, it is not over food only.
03:00
It is for resources, other resources.
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Other resources and mate also.
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Mate also.
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So this is incorrect as well.
03:10
The last option which is emerge as long as the benefit of defending outweigh the cost.
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Defending outweigh the cost.
03:19
So this is the correct answer.
03:22
This is the correct answer.
03:24
So territory is the defense area.
03:28
Defense area.
03:30
So it is that they will defend the.
03:34
The area, defend the area, when benefit of defending that area is more than the cost.
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So cost should be less.
03:46
So the cost should be less.
03:48
So for example, if we take that monkey is defending some area.
03:54
Monkey is defending the area because they live together.
03:59
They live together so some individuals have to take the responsibility for the colony...