Natural Selection is Horribly Inefficient

Natural Selection is Horribly Inefficient

So, let’s forget this impossibility of our giraffe developing multiple traits at once to make being taller survivable and useful for a moment. Was a slightly longer neck that big of an advantage that one giraffe managed to be the new standard for all giraffedom?

Just how many more leaves could a 12-foot-tall giraffe reach than a 11.5-foot giraffe? Enough that it would survive where its shorter cousins died out? We know they are all 15 to 20 feet in height now. So, if that half foot made such a difference, why do we find a difference of up to 5 feet in modern giraffes? The truth is the intermediary steps a species goes through in evolving just isn’t usually that advantageous.

Now, let’s couple that with another fact – not all mutations are useful. On the surface, this doesn’t seem to be an issue, but evolution is slow. It can take millions of years for a species to change. Further, it turns out that the overwhelming preponderance of mutations [99.9%+] are disadvantageous.

So, for Darwinism to work, we have to wait for that extremely rare positive mutation to happen, which them must miraculously connect with a sequence of extremely rare positive mutations. Only then can we finally reach a single useful mutation and hope a lion doesn’t eat our single useful giraffe

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