How do you make a claim such as a baby starting out looking like a fish. I'm sure if you wanted to make a claim that the fish is the most predominant ancestor for us to relate to, why choose just a fish. If we had an animal past why couldn't we look like a salamander, or a toad, or a wombat for that matter. Because something appears to resemble some portion of what you say is our genetic past, does that make us part fish. Ever try to mate a human with a fish? Naturally it can not be done.
Whenever a new animal species is created, it automatically excludes itself from its own gene pool(you would have to say). Here is another difficulty that you have to overcome. Animals are given specific numbers and order of their chromosomes which makes them distinct among their animal species. Even if you tried to get them to mate, most of the time they will not even try. The numbers and order of Chromosomes has to match or the sperm will not be accepted by the egg. If an animal mutates in order to produce a new species, it has left itself without a mating partner. Most animals are repelled by something different from itself anyway. Even newborn animals are subject to scrutiny by their parents, and they will very often kill the deformed baby.
Here is another thought about the start of the first animals with reproductive systems to produce the very first of a mating couple engagement. Originally, simple creatures just devided in two to create another like itself. What a surprise for these animals when they learned that not only would one animal have to spontaneously create a fully operational reproductive tract, but so would its neighbor, at the same time. Suddenly both animals have to simultaneously create these systems for themselves, but they will not be able to procreate unless both sexes realize that they now need each other. That would be an astounding coincidence to ever occur.
Whenever a new animal species is created, it automatically excludes itself from its own gene pool(you would have to say). Here is another difficulty that you have to overcome. Animals are given specific numbers and order of their chromosomes which makes them distinct among their animal species. Even if you tried to get them to mate, most of the time they will not even try. The numbers and order of Chromosomes has to match or the sperm will not be accepted by the egg. If an animal mutates in order to produce a new species, it has left itself without a mating partner. Most animals are repelled by something different from itself anyway. Even newborn animals are subject to scrutiny by their parents, and they will very often kill the deformed baby.
Here is another thought about the start of the first animals with reproductive systems to produce the very first of a mating couple engagement. Originally, simple creatures just devided in two to create another like itself. What a surprise for these animals when they learned that not only would one animal have to spontaneously create a fully operational reproductive tract, but so would its neighbor, at the same time. Suddenly both animals have to simultaneously create these systems for themselves, but they will not be able to procreate unless both sexes realize that they now need each other. That would be an astounding coincidence to ever occur.
