bama beau
Legend
Fish will piss anywhere. They just live in water.
Posts: 11,579
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Post by bama beau on May 7, 2021 18:07:32 GMT
Where'd all the water go? If it was good water, it went to Heaven. If it was bad water, it went to Flint, MI because Hell can't have any water at all. |
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Deleted
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Post by Deleted on May 7, 2021 21:26:11 GMT
Where'd all the water go? If it was good water, it went to Heaven. If it was bad water, it went to Flint, MI because Hell can't have any water at all. Except that hell is other people and other people have water in them. |
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Post by Running Deer on May 8, 2021 17:58:48 GMT
Well, actually that's not true. Evolution continues to occur. Really? Please provide an example of macro-evolution observed by anyone?? "Species" is a human construct and does not exactly correspond to biological reality. We can clearly say that alligators and wolves are not the same species, but it's unclear how to classify wolves and dogs. Wolves and dogs have a very recent common ancestor. 50,000 years ago, the dog ancestor would have been a type of wolf and would have freely mated with the ancestor wolves of today's population. Some time within the last 50,000 years, a group of wolves became attached to human beings and started to evolve very different characteristics from other wolves. Today, that group of wolves is now the dog, in all its absolutely stunning variety. So are dogs and wolves now part of the same or separate species? If we go by "can crossbreed by artificial insemination and produce fertile offspring", they are part of the same species. You can put chihuahua sperm in a female wolf and get a very odd-looking wolfdog. The wolfdog will very likely be fertile and able to donate or receive sperm from any dog or wolf. But if the definition of species is "can crossbreed in nature and produce fertile offspring", there's almost no chance whatsoever that a chihuahua male can mount a female wolf or that a wolf male can mount a chihuahua female. So by that definition, they are not. If the definition of species is "can crossbreed in nature and produce living but sterile offspring", then the chihuahua and the wolf are different species but the horse and the donkey are not. As you can see, this means that the micro- vs. macro-evolution distinction doesn't make much sense. One difference might mean the end of interbreeding while dozens of other differences might not. And some hybrid offspring might be fertile while some are sterile. If you want a recent example, google "marbled crayfish". Sometime in the last 100 years, a slough crayfish was born pregnant with clones of itself, and a new population of asexually-reproducing crayfish was formed, named the marbled crayfish. The marbled crayfish are genetically identical to a slough crayfish from ~100 years ago, but since they reproduce asexually, they cannot interbreed with slough crayfish. This is a clear species break, unlike the murky wolf/dog or horse/donkey descents. |
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Post by Mercy for All on May 8, 2021 20:57:19 GMT
Really? Please provide an example of macro-evolution observed by anyone?? If you want a recent example, google "marbled crayfish". Sometime in the last 100 years, a slough crayfish was born pregnant with clones of itself, and a new population of asexually-reproducing crayfish was formed, named the marbled crayfish. The marbled crayfish are genetically identical to a slough crayfish from ~100 years ago, but since they reproduce asexually, they cannot interbreed with slough crayfish. This is a clear species break, unlike the murky wolf/dog or horse/donkey descents. But given the impossibility of proving a negative, isn't it possible that marbled crayfish existed longer than 100 years ago? After all, the Coelacanth was believed to have been long extinct because "we didn't seem them"... |
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Deleted
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Post by Deleted on May 8, 2021 22:14:08 GMT
If you want a recent example, google "marbled crayfish". Sometime in the last 100 years, a slough crayfish was born pregnant with clones of itself, and a new population of asexually-reproducing crayfish was formed, named the marbled crayfish. The marbled crayfish are genetically identical to a slough crayfish from ~100 years ago, but since they reproduce asexually, they cannot interbreed with slough crayfish. This is a clear species break, unlike the murky wolf/dog or horse/donkey descents. But given the impossibility of proving a negative, isn't it possible that marbled crayfish existed longer than 100 years ago? After all, the Coelacanth was believed to have been long extinct because "we didn't seem them"... You know, if the old woman down the street had wheels she'd be a wagon... |
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Post by Running Deer on May 12, 2021 19:31:08 GMT
If you want a recent example, google "marbled crayfish". Sometime in the last 100 years, a slough crayfish was born pregnant with clones of itself, and a new population of asexually-reproducing crayfish was formed, named the marbled crayfish. The marbled crayfish are genetically identical to a slough crayfish from ~100 years ago, but since they reproduce asexually, they cannot interbreed with slough crayfish. This is a clear species break, unlike the murky wolf/dog or horse/donkey descents. But given the impossibility of proving a negative, isn't it possible that marbled crayfish existed longer than 100 years ago? After all, the Coelacanth was believed to have been long extinct because "we didn't seem them"... Possible? I suppose, but extremely unlikely. The slough crayfish is from the southeastern US. The marbled crayfish was identified in 1995 from aquarium sales in Germany. No wild populations have been found until recently, and those populations are in Europe, nowhere near the slough crayfish's home area. The wild populations are almost certainly due to releases from pet owners and stores, since crayfish aren't known to be capable of crossing the Atlantic Ocean. |
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Post by Mercy for All on May 12, 2021 22:02:06 GMT
But given the impossibility of proving a negative, isn't it possible that marbled crayfish existed longer than 100 years ago? After all, the Coelacanth was believed to have been long extinct because "we didn't seem them"... Possible? I suppose, but extremely unlikely. The slough crayfish is from the southeastern US. The marbled crayfish was identified in 1995 from aquarium sales in Germany. No wild populations have been found until recently, and those populations are in Europe, nowhere near the slough crayfish's home area. The wild populations are almost certainly due to releases from pet owners and stores, since crayfish aren't known to be capable of crossing the Atlantic Ocean. Yeah, I'm just playing devil's advocate, not trying to score a point against you. It's a very interesting case. |
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