Saturday, 18 March 2017

Observable Evolution Over Nine Generations!

Plants pollinated by bumblebees become more fragrant.
Picture: UZH
Real-time divergent evolution in plants driven by pollinators | Nature Communications.

Until a few years ago, almost all creationists had no doubt at all; evolution simply didn't happen. All living things were created in a couple of days exactly as they are today. There was no debate; evolution didn't happen because it wasn't mentioned in the Bible and that was that.

This is still the position maintained by a large number of creationists who believe the world was created just a few thousand years ago, as we see it today, and nothing has changed since.

Thursday, 16 March 2017

Noses Run Counter To Creationism


Image: © iStock Photo kowalska-art
Investigating the case of human nose shape and climate adaptation | PLOS Genetics

Scientists believe they have uncovered evidence that the different human nose types are at least partly or even mostly adaptations to different climates as humans spread out from our ancestral homeland in Africa.

An important function of the nasal cavity and the nasopharynx is to humidify the sir before it reaches the lower respirator tract and the lungs.

Using 3D facial imaging, the team measured the width of the nostrils, the distance between nostrils, the height of the nose, nose ridge length, nose protrusion, external area of the nose and the area of the nostrils. They found the two measures: the width of the nostrils and of the base of the nose differed between different human populations by more than would be expected from genetic drift alone. They found a positive correlation between the width of the nose and the warmth and humidity of the climate in which the populations lived.

Unintelligently Designed Epigenenetics

Creationists, especially those who try to disguise their religious cult as 'Intelligent (sic) Design' and pretend it's science, seem to be getting themselves over-excited by the relatively new science of epigenetics.

It's easy to see why, given the abysmal ignorance which characterises creationism, because it superficially seems to challenge some of the basic principles of Darwinian evolution because it appears to open up the possibility that changes acquired after conception can be passed on. This is, of course Lamarckian, not Darwinian inheritance.

Given the creationist assumption that if they can show any science to be ever so slightly wrong in any way, the entire body of science if proven false and their primitive, evidence-free superstition wins by default, they grasp desperately at epigenetics like a drowning man grasps at straws and wave it in triumph.

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