David Davidovich
Well-Known Member
Evolution occurred in all organisms, not just those of humans.
There are other organisms that don't have brains, so brains are not the only factor to consider for evolutionary changes, and in some cases, speciation occurred due to such change.
I wasn't referring to evolutionary changes; I was talking about intelligence.
Beside that.
What intelligence are you talking about?
I am asking because intelligence among humans varied widely.
So are there a particular form of intelligence that you are referring to?
To give you an example.
Let's supposed that there are two humans. One of them is intelligent because he is a rocket scientist, while the other is a cook.
Does that mean a cook who cannot design rocket, as being "less than human" or "not human"?
You're entering into strawman territory because being less than or not being human is not the issue. However, it can clearly be said that even within the human species, there are some humans who are more intelligent than other humans.
And when each have children, grandchildren and so on, do they inherit their knowledge and skills through DNA?
I would say that some humans can inherit the ability to learn knowledge and to have wisdom, in addition to having the potential to acquire abilities from their parent or other antecedents. And conversely, some humans do not inherit their parents or antecedents' ability to learn knowledge and to acquire wisdom and/or have the potential to acquire certain abilities.
Or are such skills and knowledge taught to them?
I'm glad you asked that. Because one example that I would like to use is that of the German cockroach. And I'm guessing that probably most people during at least one time in their lives have either had these kinds of cockroaches in their homes or apartments, or have witnessed them in someone else's home. Also, if you try to smash one of these types of cockroaches either on a counter or on the floor, they will move like a football player in order to evade being squashed. However, unlike football players who have to spend hours on the training field perfecting their running and their evasive moves, a German cockroach doesn't have to spend time honing their skills of evasion. They just know how to do it naturally. It's built-in. And it's not even like the example that Tiberius used about baby birds who at least have to practice how to fly where it takes repeated effort, and I'm guessing that the development of their wings and breast muscles are involved too. But for cockroaches, their abilities to evade are completely built-in to them... No learning required.
Also, once again, with humans, they can both inherit the potential to learn knowledge and wisdom from their parents and antecedents, and the potential to acquire their forebearers' skills. While at the same time, some children don't inherit their antecedents' knowledge, wisdom, and/or the potential to develop their skills. Like for example: I was never good a sports, no matter how I tried, however, I have siblings and relatives who are good at sports, and I'm guessing they inherited that from someone in our family tree.
As Tiberius have tried to explain to you, intelligence is not good indicator of evolutionary changes, because no knowledge and no skills inherited through their genes, hence being able to built rockets or to cook chow mien or grill steak are not heritable biologically, hence such skills and knowledge have absolutely nothing to do with Evolution.
I'm sorry, but I disagree with that as I just previously mentioned. Also, Tiberius and I had narrowed down what we were actually talking about to the definition itself of intelligence
Intelligence are not good indicator of changes to biology, especially of non-human organisms.
Once again, Tiberius and I were only trying find what the definition of "intelligence" was.
To give another example, brown bears and polar bears are closely related to one another, are considered sister-species. Biologists, specialists in bear biology would investigate HOW, WHERE & WHEN such changes occur - the divergence of these two species.
You could resort to what many creationists resort to, and say -
1 and 2 aren't explanation, just assertion without understanding the biology of two different types of bears.
- they are not different species,
- or the silly "bear will always remain bear"
- or say even more stupid thing like "Can a bear give birth to a dog"?
And 3, is what only idiots say, because they don't understand Evolution, so they "make up" insane and impossible scenario that no biologists would consider them to be serious question.
Number 3 comes up a lot among creationists, especially like "Can cat give birth to dog?" or "Can dog give birth to cat?" Or the frequent "Can chimp give birth to a human?"
No biologists would ask this sort of question, because it is just plain ignorance and intellectually dishonest to repeat such lame and unscientific scenarios.
None of these are probable, because they don't understand Evolution. especially the "common ancestor"?
Neither humans or chimpanzees exist 7 million years ago, but some extinct species that exhibit some common physical traits of either before the divergence. So no, chimpanzees didn't and cannot give birth to human species, nor humans to chimpanzees.
This extinct species was possibly Sahelanthropus tchadensis (also known as the Toumai), which flourished during the Miocene epoch, the specimen were found in Chad. The science community haven't yet reached a decision if the Sahelanthropus is a direct common ancestor of both humans and chimpanzees, or not.
Um, okay.