people learn to build boats to get across the waterways and all the 'gorillas' mix back together (White,Black,&Gorillas). A big continental slide slid apart in the middle of them seperating the species of 'gorillas' into 3 groups, with no landways connecting them (seperated by water), so they could not breed with the other gorillas.Ĭouple hundred years later the one group of gorillas has evolved into White humans, the 2nd group has evolved into black humans, the 3rd group are still gorillas. Lived a species of gorillas that were like the ones u see in the zoo. Or are they all still all the same species?Ī long time ago on earth the same earth right under your feet. Which group isn't the same species as before? all these fish were the same species before, but now. Now the orange and yellow group's sexual funtions have not evolved or changed just their color so they can still breed together, but the red groups sexual junk changed as well as its color so it cant breed with the other groups, so. the rock piles fall down and all the fish groups mix back together (orange,yellow,&red). A big rock pile fell in the middle of the lake seperating the species of 'red fish' into 3 groups, with no waterways connecting them, so they could not breed with the other fish.Ĭouple hundred years later the one group of fish has evolved into a yellow group of fish, the 2nd group has evolved into an orange group, the 3rd group are still red. Lived a species of fish that were red in color. Metriaclima" if you really want to see the fur fly!Ī long time ago in a lake far far away. Metriaclima estherae, 2001, new combination. Maylandia estherae, 1998, new combination. Pseudotropheus estherae, 1995, original combination. Pseudotropheus cyaneorhabdos, 2002, new combination. Melanochromis cyaneorhabdos, 1997, original combination. Melanochromis 'maingano', 1983, provisional name. But I'm okay with that since huge parts of the community can't agree on this either. It's somewhat accepted that any mouth brooding Malawi cichlid could breed with any other mouth brooding Malawi cichlid - but I don't know anywhere near enough about biology or naming conventions to say when separate populations differ enough in colouration, feeding behaviour and body structure to become different species. if I'm not mistaken, every open water cichlid in Lake Malawi was once grouped in the genus Haplochromis. Most of the people, scientists, adventurers and hobbyists alike, did the best they could with the information available. I don't have the answers as to what should, or shouldn't constitute a species and I'm not certain that any singular answer can be used across all organisms.Īnother question when it comes to speciation, is exactly at what point in evolution, do we have two distinct species? hmmmmmm opcorn:Ĭlick to expand.Not so much 'didn't have a clue.' More like 'unable to study underwater specimen accurately enough in habitat.' It certainly is good to challenge accepted practises, and learn more. It seems as though a majority of mouthbrooding cichlids in African can hybridize, and produce viable progeny, in non-natural, captive situations. For the purpose of the hobby, we consider them distinct, and encourage people not to hybridize these. If we take a look at the various Aulonocara stuartgranti for example, you can see that there are many very distinct and stable colour variants. The naming of species for human purposes is as mentioned previously somewhat fluid (changes over time) arbitrary and temporary in nature. įor the practical purpose of fish keeping, the hobby views that any unique fish, should not be bred with any other unique fish, or the result is a hybridization, even if they are "currently" described as being the same species, and most certainly if they are different species. Wiki (ok has it's limitations) actually has a reasonable discussion listing all the different manners which scientists use to determine and describe "species". It has been called the "Species Problem". The definition of species, and perhaps even Genus are somewhat problematic, at least in my opinion. Click to expand.I am fairly confident they are aware of the "old" Biological Definition of nomenclature, but have long since dismissed it as inaccurate, much the same way as most now acknowledge that the world isn't flat.
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