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šitas ir labs, no karstas diskusijas par ID (intelligent design) atcelšanu no skolu mācību programmas kādā Pensilvānijas apgabalā:
Oh please. There are examples of intermediary steps in eye development throughout the animal kingdom, from simple eye spots all the way to mammalian eyes. Each step is fully functional and does what the organism possessing it requires it to do.
Here's a couple of questions for you:
If the eye is in fact designed, why does it suffer from the imperfection of the blind spot? Nerves in the mammalian eye actually lie on top of the retina, and where they gather together and plunge through the back of the eye to form the optic nerve, no light can be sensed. This is a design flaw any fallible human engineer would catch and correct...so what does this say about the superhuman Designer of ID fame? (And before you maintain that the eye needs to be designed in this manner, consider the eye of the octopus and squid, which is actually designed correctly (nerves lie under the retina, avoiding the problem of the blind spot).
Cats have eyes that can see clearly in what we perceive to be total darkness. Some squid have twelve different types of color sensing cells (as opposed to our three). Eagles have acuity of vision undreamt of by man. Bees and some birds can see into the ultraviolet. Pit vipers can see into the infrared by virtue of their pits (infrared-sensitive eye pits). Before you ask 'what good is half an eye, consider what good your eyes are to you, deficient as they are.
Oh please. There are examples of intermediary steps in eye development throughout the animal kingdom, from simple eye spots all the way to mammalian eyes. Each step is fully functional and does what the organism possessing it requires it to do.
Here's a couple of questions for you:
If the eye is in fact designed, why does it suffer from the imperfection of the blind spot? Nerves in the mammalian eye actually lie on top of the retina, and where they gather together and plunge through the back of the eye to form the optic nerve, no light can be sensed. This is a design flaw any fallible human engineer would catch and correct...so what does this say about the superhuman Designer of ID fame? (And before you maintain that the eye needs to be designed in this manner, consider the eye of the octopus and squid, which is actually designed correctly (nerves lie under the retina, avoiding the problem of the blind spot).
Cats have eyes that can see clearly in what we perceive to be total darkness. Some squid have twelve different types of color sensing cells (as opposed to our three). Eagles have acuity of vision undreamt of by man. Bees and some birds can see into the ultraviolet. Pit vipers can see into the infrared by virtue of their pits (infrared-sensitive eye pits). Before you ask 'what good is half an eye, consider what good your eyes are to you, deficient as they are.