Natural Selection and Survival of the Fittest

[Alceste]

This may be of use:
Bird Lung


Could you provide a source for this article, please?

Harun Yahya.

 

[Quintessence]

In short, a transition from one type of lung to the other is not possible, because no "transitional" lung could function properly.

This is a common misunderstanding. We think of organisms as being like machines with parts that either work or don't. Parts are either properly designed and working or they aren't. To understand evolution, we need to step away from these kinds of assumptions. These assumptions are projections; they assume that a particular form ought to have a specific function. Science is not prescriptive, it is descriptive. In real world biology, there is no progression or purposeful drive towards some finished, perfect, properly functioning product. This kind of progression requires foresight, and this kind of metaphysical foresight has no place in science.

All biology cares about is "does this attribute increase the chance of the organism surviving and producing offspring and is this attribute heritable?" If the answer is yes and continues to be yes over a period of time, whatever that attribute is will tend to increase in the population. As far as evolution is concerned, if the attribute confers a survival advantage, it is functioning "properly." It doesn't have to be full and complete according to some human evaluation of the attribute to confer that advantage.

 

[camanintx]

If what we creationists reffer to the soul is in fact a neuron/s then how do you explain these neurons suddenly dying in a perfectly healthy body? They do have a life span, a long life span, so what can be said about a perfectly healthy child dying at young age?

Like all cells in our body, neurons can die for many reasons. But just as you can remove a pixel from a picture without loosing the image, our brains are perfectly capable of loosing a few neurons without danger. We are even able to replace them over time. It is only when neuron loss becomes persistent and widespread as in Parkinson's disease that it becomes fatal.

So i have to ask, how can the body function physically when it is not connected to the head? All possible neuron paterns are lost and yet the impossible suddenly becomes possible.

Just because our body responds to signals even if they don't come from our brain does not prove that we have "souls". Cases like Mike the headless chicken have been throughly studied and explained.

 

[Noaidi]

Harun Yahya.

Thanks, Alceste.