Scientists discover fish in act of evolution in Africa’s greatest lake
- added October 10, 2008
- 8 responses
-
-
-
- hawk5000
- added this
-
-
- related topics
-
- News and Politics (44763)
- Earth and Science (13156)
- Climate Change (1806)
- Animals (1775)
- Africa (1194)
- Pollution (598)
- Evolution (256)
- Fish (183)
- Species (25)
This may be remarkable because what is causing them to diverge are adaptations to their vision as animals and plants try to cope with increased pollution and the effects of climate change. The change is also happening without geographical isolation, which was thought to be a precursor for evolution.
The Pundamilia nyererei is a haplochromine type cichlid native to areas in the Mwanza Gulf region of Lake Victoria. This region consists of many islands where each island region has its own color variant of the fish.
In a report published in the journal Nature, researchers from Tokyo’s Institute of Technology and the Swiss Federal Institute of Aquatic Science and Technology have observed the cichlid evolve into a new species better adapted in sighting its prey and predator.
But the scientists have also tabled evidence indicating that it is not pollution and over-fishing alone that are responsible for the disappearance of some fish species in Lake Victoria and the evolving of others like the cichlid into new species.
The report summarizes that new species may be born because of vision differences and what fish see at least in one African lake could be the driving force that causes them to evolve into new species.
This may explain the very rapid loss of pundamilia in Lake Victoria over the past 30 years. The study says the eye adaptations have also affected mating patterns.
Researchers looked at two species, conspicuous by their red or blue colours. They determined through lab experiments that certain genetic mutations helped some fish adapt their vision at deeper levels to see the colour red and others in shallower water to recognise shades of blue.
The researchers showed that the eyes have adapted to this difference so that fish that live in deeper water have a pigment in their eyes that is more sensitive to red light, while shallow-water fish were sensitive to blue.
Generally, the evolutionary process of speciation (the formation of new species) occurs when one species is split by a physical distance or barrier, allowing each group to develop different traits. The observations of Lake Victoria’s cichlids provide evidence of an unusual form of evolution known as sympatric speciation, which occurs without the physical separation of a population group.
-
http://current.com/items/89378885_creationist_offers_prize_for_fossil_proof_of_evolution
how much is that creationist guy offering for living proof of evolution?
-
-
-
-
- myndperception
- 1 month ago
-
-
Wow, simply amazing.
-
-
-
-
- mischabarrett
- 1 month ago
-
-
Cool, though surely all life on earth are constantly in the process of evolution..? Cool that we're getting to observe this so explicitly though, even if it is caused by our over-fishing.
-
another misleading piece of "evolutionary" shit. try variation within kind...NOT evolution. Evolution would be a completely new creature, which this is not..and not, of course, evolution.
-
echoz, that may be your interpretation of the article but that is not what the article states.
It does not suggest they have found a yet undiscovered verity of cichlid fish. It claims they have discovered that this fish has started to mutate into a physically different species of fish, ie a new creature.
What proof do you have that we are inbred off spring of Adam and Eve?
-
mutations are not evidence of evolution hawk'
there are many mutations that never go anywhere to creating the kind of creature changes evolutionists purport (as from the absurd T-Rex to chicken assertion as fact a few months ago...what bs...only to find it wasn't blood at all, but bacterium...evolutionists always stretch the truth to their own convenience only to have to eat it later when they should just stick it and shove it imho, I trust you'll forgive my impatience, if not..pfff) In fact most of them lead to disease. if evolution were a real "force of nature" in real life, we wouldn't have less species, we'd have more. A LOT more, but the veritable, tangible, empirical, and sadder truth is that extinction is more of force than even the 'best' evolutionists like to admit for their own religious faith that the world should be godless.
As for hawk's bs about 'Adam and Eve' just use your own common sense people. Take that chicken evolutionists tried to use as sharing some of the RNA or whatever they found in that miraculously unfossilized T-Rex bone (don't evolutionists maintain that dinos died out millions of years ago? what a can of worms that would have opened up for them but the over-zealous prix didn't see that one coming). How long do you think it took for chickens to miraculously realize they needed to sit on their eggs maintaining a constant temperature before they'd hatch? Wouldn't they have died out before learning how to get it right? Get real. There is a far deeper nature and complex order to the world and the universe that continues to literally astound physicists and scientists everywhere, the kind of 'stuff' that just isn't simply explained away with some convenient bs of "mutation"
I think I can reasonably guarantee that the list of extinct species has grown by leaps and bounds to the list of supposedly "new" creatures and species "discovered" by evolutionists through the myth of "evolution". Seems to me that Creationism at least as a potential theory, regardless of whether one subscribes personally to any faith or not, is worth a credible look and review. Any dispute to that generally comes from inperscipacious mferz wanting to keep the boot of "evolution" monopolistically down on your necks people. Fuq the establishment.
-
whats the difference between evolving and adapting? i mean was it a different fish totally or is it the same fish with adapted eyes?
