No, since both the rat and mouse are alive. In any case, your fish have no "substantial" differences between the two. Plus your evidence is entirely of known Intelligent Design. There is a substantial difference between the earliest vertebrate(not a worm) and homo sapiens.
Another example of Intelligent design.
HUH?
Granted that carp in my picture probably ended up as dinner, But carp & goldfish both are alive today. However 1200 years ago there was no such thing as a goldfish
Please tell me you are beyond the "Why are there still monkeys" argument
In any case, your fish have no "substantial" differences between the two.
Define "Substantial"
OK let me guess, Substantial means whatever you define on a case to case basis, always one step beyond whatever evidence is presented to make sure you never have to believe.
Are you blind, here are some substantial differences
2 Bubble filled sacs
Eyes pointing upward and telescope eyes
button eyes
Oranda headgrowth
Larger or no dorsal fin (Note: Goldfish with dorsal fins have concave shaped
fins, While the crusian carp fins are convex)
Double tail
Egg Shaped body
Different colors
Re-arranged and sized swim bladders
Different way of swimming (For swimming 2 tails are not better than one)
Can't survive in each others habitat
Microsatellite markers.of 100 units (Grecian Carp have only 65)
Coarsely serrated dorsal spine
Matt, metallic, nacreous and pearl scales.
To name a few
If we didn't know from historical records that goldfish came from the crucian carp you would never know they were related. There are probably more differences between the fancy goldfish and crucian carp then there are between human & Chimp, besides being both fish I can't think of many similarities between the two.
Plus your evidence is entirely of known Intelligent Design.
Huh? Did the medieval chine's have genetic engineering capabilities I haven't heard about?
There is no difference in the way goldfish evolved as opposed to any other organism. With goldfish it was look pretty or you're dinner. Goldfish evolution mirrors the evolution of many male birds (i.e. peacocks & birds of paradise) except the only difference is people decide what's pretty enough to breed instead of female birds. There's no design, the Chinese didn't set out to create a bubbleeye or an oranda head, random mutations and selection led them that way.
There is a substantial difference between the earliest vertebrate(not a worm) and homo sapiens.
As well as between the goldfish & crucian carp. The only difference is 500 Million years
Simple math, Even if we assume a very conservative estimate the goldfish & the crucian carp are genetically different by only 0.01% (The microsattilite difference alone guarentees they are way more), That would mean that in 1000 years it's possible to change an organism genetically by 0.01% and exploitating that would mean an organism can change 0.02% in 2000 years, 0.03% in 3000 years and in 500,000,000 years you could change an organism by 5000% which is well enough to cover any change from early chordates to human.