ROI Science: Evolution vs Creationism
Facts on the Fossil Record, Geologic Column, Transitional Fossils and other Evolution Facts
Evolution Facts for Fence-sitters
Previous Blogs on Evolution Facts
Transitional Fossils: Archaeopteryx, Dinosaur-Bird Evolution and Creationism (view more)
-Explains the transition from feathered dinosaurs to modern day birds. Also addresses most creationist arguments.
Debate with Creation Scientist Dr. Jackson (view more)
-A debate I had with creation scientist Dr. Jackson. Contains the converging lines of evidence for evolution, common creationist rebuttals to them, and responses to those rebuttals.
First Americans and the Extinction of the Mammoths (and other Megafauna)
-Explores the correlation between the arrival of humans into the Americas and extinction of mammoths and other megafauna in the Americas.
Anti-evolution arguments are hardly a problem for evolution. If you feel differently, feel free to spend some time on these websites, as they are full of evolution facts.
Origins - an impressive archive of responses to creationist claims, evidence
for evolution, and the exposure of creationist hackery.
Talk Origins - Index to Creationist Claims - responses to most anti-evolution arguments and provides evolution facts.
Ken Miller - Professor at Brown University
The Ancient Life History of the Earth
Talk Origins Quote-mine project - Creationsists are fond of quoting scientists out of context. This site shows the contexts.
How Good Are Those Young-Earth Arguments?
Creationism vs Evolution
No Answers in Genesis
29+ Evidences for Macro evolution: the Scientific Case for Common Descent
The Logical Fallacies of Creationist Arguments
The Evolutionary Tree/Bush (both metaphors will work)
Evolution is not a linear event nor is it a ladder. It does not mean upgrade and evolution does not "lead up to humans." Humans are simply a variation of the plethora of life that evolution has resulted in. Much of the creationist propaganda presupposes that humans are the end sum of existence and therefore we can't possibly be animals. "I find a nebula beautiful therefore it was designed" and "how can you possibly think we are animals" only shows the egocentric nature of creationist thought.
Evolution Facts: Evolution Fact Tree
Evolution Facts: Evolution Books - Evolution vs Creationism
Creationism vs Evolution
What Evolution IS, why it's a fact, and why Creationism is a farce
To oversimplify, Evolution is the gradual change in species over time. Evolution explain how life as we know it came to be, and this was accomplished via genetic changes (the successive change in alleles) that occur each reproductive cycle (we know this happens, because none of us are identical to our parents nor our siblings. We can observe evolution in real time when we see speciation in effect, not to mention what we've learned through the study of DNA). In nature, where species must compete with each other for food and mating rights, only so many of them will be successful. In a given environment, species with certain traits will have certain advantages over others and therefore have much higher likelihood to survive and reproduce, thereby passing on the genetic traits that made them successful, while those without these traits will be less likely to survive and reproduce and therefore those traits that proved to be disadvantageous will be less likely to continually exist in a species.
Read more about the various causes of evolution.
Sometimes species will spread out become isolated from each other, and the same species will exist in completely different environments. Sometimes the local ecology will change. This will result in a different set of traits to be naturally selected (in real time, these small changes are known as micro evolution) and over millions of years, will result in gradual large-scale changes (macro evolution).
So then, why do creationists claim that "evolution says everything is getting better" or "things are not evolving they are devolving?" Simply put, these are straw man arguments (building up a weak version of an opponent's viewpoint and attacking it). Likewise with their attack on the phrase "survival of the fittest." This is not how evolutionary scientists generally describe evolution, and the term was actually coined not by Charles Darwin, but by Herbert Spencer who was writing about his ideas of economics and likening them to Darwin's Natural Selection. "Fittest" in this manner is a misnomer because what's considered 'fit' in one environment may prove to be a serious disadvantage in another.
Creation Science as Pseudo Science - Rather than explaining why each Creation science arguments are pseudo science I will provide links to rebuttals for some of the more common garden variety arguments that Creationists seem bent on repeating.
Typical Creationist Claims
The Law of Thermodynamics prevents evolution
There are no beneficial mutations
The Universe must be young because of the rate of the; 1- Receding Moon 2- Earth's Magnetic Field 3- Depletion of the Sun 4- Slowing of the Earth's Rotation
X amount of scientists reject evolution
Evolution cannot explain; 1-right and wrong, 2-emotions, 3-the eye, 4-the Bomardier beetle, 5-Irreducible Complexity, 6- the development of lungs
Evolution contradicts what the Bible tells us (the real 'problem'). There are plenty of Christians who accept Evolution
In other words, Creationism's only real purpose is to distort evolution facts due to perceived conflicts with their religious beliefs. Real science gathers and investigates facts, produces hypotheses and theories which it continually tests with falsifiable means. This methodology has led to the theory of evolution, which is universally accepted as a fact in the science community (minus a few religious scientists who can easily gain a large following in a nation with a religious majority).
Creation science does not follow such an objective methodology. Rather, it collects whatever convenient information it can find in order argue for the belief in creation while using straw man arguments, quote mines, and in some case, outright lies to discredit evolution. Few creationists understand this because they in fact see it as a debate; one side says this, the other side says that. They generally fail to see that the 'evolution side' is virtually the entire science community, and that Creationist rebuttals are little more than semantic distortion of evolution facts.
Evolution is a Theory AND a Fact
Entrusting your understanding of evolution to Creationist sources is like entrusting your understanding of smoking's effects on your health to Tobacco Industry scientists. Many people do not realize that the word theory has a different application in science than it does in every day usage, where we use it interchangeably with words like 'hunch' or 'conjecture.' This is simply not the way the word theory is used in science, where the word theory and fact are not mutually exclusive. Below are snippets of and links to articles that further illustrate this fact.
Evolution: Fact and Theory by Richard E. LenskiIf you are going to insist on simply accepting what creation science has to say about Evolution, at least read the 'other side' of the story from sources like TalkOrigins, then do some of your own independent research and decide what to believe. Sadly, few literalist Christians will do this because generally speaking, their idea of research is limited to looking for more reasons to continue believing what they are already desperately trying to continue believing.
"Scientific understanding requires both facts and theories that can explain those facts in a coherent manner. Evolution, in this context, is both a fact and a theory. It is an incontrovertible fact that organisms have changed, or evolved, during the history of life on Earth. And biologists have identified and investigated mechanisms that can explain the major patterns of change." Read Full Article
Evolution as Fact and Theory by Stephen Jay Gould
"In the American vernacular, "theory" often means "imperfect fact"—part of a hierarchy of confidence running downhill from fact to theory to hypothesis to guess...Well, evolution is a theory. It is also a fact. And facts and theories are different things, not rungs in a hierarchy of increasing certainty. " Read Full Article
If Evolution is true, we should of course, find at least some intermediates between older and newer fauna (fossilization is rare so there is no point in expecting to find every 'step' between them). If birds evolved from reptiles, we should find reptile-birds, and if whales evolved from land mammals, we should find semi-aquatic mammals as well as whales with leg remnants. Furthermore, we should find these transitions in the layers connecting the appearance of these creatures. Because Darwin predicted we would find such transitional forms in the fossil record, and because the Bible (Genesis 1:21) claims that God created each animals according a specific "kind," Creationists are weary of admitting that these transitional fossils exist, and have devised a number arguments to negate these findings. Superficially, some of these arguments are sound, especially to creationists who refuse to read 'evolutionist' material and obtain all of their information on evolution from creationist sources. Note, if you are confused as to the use of the word "kind," It is no clear hat Creationists have ever come up with a consistent definition. It appears to lie somewhere in between "Class" and "Family," moving back and forth within this range, depending on what it is creationists are asserting or denying at the moment.
Evolution Facts: Transitional Fossils
1860, a bird with reptilian qualities was discovered in Jurassic deposits
(the layer we'd expect to connect dinosaurs and birds). Known as Archaeopteryx,
this bird has become the classic example of a the transitions Darwin
expected to be found. Nearly 150 years later, Creationists continue
to claim that "Archaeopteryx is just a bird" and then start listing
its birdlike qualities while completely leaving out the numerous
reptilian features that no modern birds possess (long bony tail,
teeth, pneumatic bones, free vertebrae, reptilian mouth as opposed to
a bill/beak, etc). The fact that it's classified as a bird (it is) comes
from a blatant misunderstanding of taxonomy. Archaeopteryx has to be
classified in one group or another. If it were classified as a dinosaur,
Creationists would use the same argument, only substituting the word
'dinosaur' for 'bird.' Dinosaurs and birds are so closely related that
they are often regarded as the same (birds
are sometimes regarded as avian dinosaurs, while other dinosaurs are
considered non-avian dinosaurs, and birds are in essence, a type of
reptile). In this sense, it is almost pointless to say that dinosaurs
are extinct, given that we may regard birds as modern dinosaurs.
This is no different than with what see with fish. There are numerous Devonian era fish that are now extinct. Even though THOSE fish are extinct, modern day fish are simply their modern day relatives. So it would make no sense to say that fish are extinct, even though modern fish are not identical to Devonian era fish.
There is also the straw man arguments that ignore the very basic understanding of evolution as sort of a tree and make it out to be this linear event, whereby one species cannot lead to another without going extinct. The Institute for Creation Research is very well known for using arguments like these, which work like this; Evolutionists claim that Species Y evolved from Species X, yet they are often found in the same strata of the fossil record. This argument implies that EVERY member of Species X must evolve into Species Y if evolution is true. This is a blatant and, I have to assume, intentional skewing of speciation. Species give rise to other species for various reasons, including changing ecological conditions or isolation. There is nothing about speciation that would lead one to believe that Species Y and Species X can't possibly be contemporaries. This is simply one of the many straw man arguments in the Creationist arsenal.
Then of course there is the faulty claim that Archaeopteryx is a fraud. This is one of the urban legends that Answers in Genesis advises Creationists not to use. There is also the "fall back" argument that there should be transitions in between Archaeopteryx and other reptiles of birds. Like virtually all other Creationist arguments, this is based on an assumption, and it completely ignores the study of taphonomy and what it says about the rarity of and requirements for fossil preservation.
Aside from the backtracking argument that claims "there aren't ENOUGH transitional forms," there is an equally disturbing and even more dishonest attack; quote mines. While there is no debate among Paleontologists as to whether or not transitional fossils exist, sometimes they will debate as to whether or not it is a direct precursor to the succeeding fauna. For example, Archaeopteryx could very well have been an evolutionary 'dead end,' and modern day birds are the descendants of a close relative of Archaeopteryx (as opposed to Archaeopteryx itself). What these Paleontologists are questioning is whether or not Archaeopteryx is in fact an ancestor to modern-day birds as opposed to simply being closely related to such. Creationists love discussions like these, as it gives them quote mines to use in their attempt to perpetuate the illusion that evolutionists themselves deny that Archaeopteryx is really a transitional fossil. This type of dishonest hackery is really the heart of 'Creationism.'
Creationists sources try and use Alan Feduccia as a source for rebuttal (because he disagrees with mainstream Paleontology in its assertion that birds evolved from Theropod dinosaurs), while omitting the inconvenient truth that he makes a good case for the idea that birds evolved from another line of reptiles. Oddly enough, Creationists seem to think that this somehow negates the fact that Archaeopteryx has reptilian features, and is found in layers below modern birds. They don't even appear to know that he has a book;
The Origin and Evolution of Birds - Alan Feduccia
Typical Creationist Contradiction:
Creationists claim that there are no living intermediates AND use living living intermediates to support their argument that transitional fossils don't exist. The Hoatzin is a perfect example of this. Creationists often claim that the claws on Archeaopteryx hardly make it a dinosaur, considering the fact that the Hoatzin, a modern bird, has claws.
The amount of transitions we find are enormous and constantly growing. I suggest visiting TalkOrigin's list of Transitional Fossils and doing further research on the transitions of your choosing.
These sites list Transitional Fossils
Hominids aka 'Ape-Men'
favorite Transitional of all however, would have to be our extinct cousins
and ancestors, the Hominids. Most creationists seem to blow off the
entire hominid line and bring up Nebraska Man and Piltdown Man, along
with urban legends of Lucy's (Australopithecus Afarensis--and they appear
to think that "Lucy" is the only afarensis ever found) skull or knee
cap being found far away from the rest of her body. They appear to ignore
the rest of the Hominid line most of the time. Creationists generally
have no idea just how extensive these findings were.
We see a clear gradation from 'ape to human' in the study of Hominid anatomy. Apes have large defined sagittal crests and jaws, small brains, and a spine and pelvis that clearly make them knuckle-walkers. Humans have smaller jaws, much larger brains, and a pelvis and spine that's useful for walking. Within the various hominids, we clearly see several levels of transitions, not only in their anatomy, but in their abilities to use stone tools, fire, even rudimentary forms of art and we make our way to the anatomically modern homo sapiens. Hominid fossils are not limited to 'a few monkey skulls' as Creationists would have you believe. Numerous species have been identified.
Understanding the Hominid Line
I suggest watching these 2 documentaries for a basic understanding of the Hominid line. Then read the following links for more details on the various Hominids.
Ape to Human - History Channel Documentary explaining the various Hominid findings!
Becoming Human - Excellent interactive Documentary about the various Hominids!
Journey of Man: A Genetic Odyssey
Creation Scientist Confusion on Hominids - Creation 'scientists' are adamant that Hominids are not 'ape-men,' but they can't agree in which are ape and which are human!
Hall of Human Origins
Various Hominid Skulls
Discovery of Early Hominins
The truth about Piltdown Man
The truth about Nebraska Man
Fossil Hominids - Excellent FAQ AND responses to Creationist arguments
The Geologic Column and Fossil Record: The Law of Faunal Succession
The Law of superposition explains how lower strata tend to be older than the strata above them. The existence of successive rock layers is caused by the deposition that takes place over the different Geological eras. Erosion takes away from these sediment layers. So while the order of successive layers are consistent, the layers for each Geological era do not exist in uniform sediment thickness, because deposition and erosion do not happen uniformly throughout the world, nor at the same time. Hence, the Creationist argument that the column must be more 'universally' present in order to be valid is simply untrue and ignores basic Geology.
Simple physics (ie. gravity) and common sense makes it apparent that the lower strata are older as they have to be formed in order for more sediment to be deposited above them. There are a few exceptions to this of course; thrust faults and folds for examples can cause contortions in the layers. The existence of folds and thrust fault have are well understood and can be checked for, and they are by and far the exception to the rule. Things like trees cutting through stratigraphic layers' can easily be explained by simple Geology 101 concepts like cross-cutting (the cutting of older, but still-soft sediments by newer, objects).
The above statements are by no means ad hoc explanations. These Geophysics principles were known before Darwin's voyage on the Beagle, and were therefore not created for the sake of arguing evolution. Rather Evolution is in fact, largely born of the Geological history and the order of the fauna within. The men who founded modern Geology were in fact Christian, which is why Old Earth Creationism (known today as Progressive Creationism, and is sometimes mixed and matched with Theistic Evolution) predates the theory of Evolution. The geologic column and the law of faunal succession show us that the Earth's fauna have appeared in a certain order, and Evolution simply explains the cause of this reality.The fact that Christian scientists were already modifying their view of Creation to accommodate this fact should serve as a wake up call to creationists.
To oversimplify what we find in these successive layers; we
find fish before we find amphibians, which we find before we find
reptiles, which we find before we find birds. A similar succession of
fauna can be applied to the faunal succession leading to humans and
whales. Furthermore, we find representations of transitional fossils ("in betweens") in
the layers we'd expect them to if certain orders of animals evolved
Understanding of the Geologic/Stratigraphic Column is also used in commercial enterprises like Petroleum Geology. I would venture to say that in modern western society, one of the biggest 'validators' of a scientific theory is when we see it successfully used commercially--especially in the petroleum industry. Successful corporations do not throw money away on 2nd rate science.
Creationists are essentially stuck with having to call 200 years of Geology
a big mistake or even a lie. Arguments about human artifacts and/or
footprints being found alongside dinosaur tracks or inside fossilized
coal always turn out to be urban legends.
Young Earth Creationist arguments generally fall within 2 categories
1-Basic ignorance of sedimentation: This generally involves the belief that deposition is measured in mere 'height' of layers (as opposed to the time it takes to harden into different types of rock). In other words, if 10 feet of soft sediment can be rapidly deposited, than then existence of 10 feet of sandstone or granite can very well have been deposited yesterday.
2-Ad Hoc explanations: Some creationists will use everything from hydrodynamic sorting to "pre-flood habits" to try and explain the order in which we find these fossils, and argue that this is consistent with a global flood depositing the layers we find. The more you know about this order however, the more blatantly false these explanations become. Animals of similar niches (like large elephants and sauropods, crocodiles and semi-aquatic mammals, fish and whales) show up in completely different layers of the strata. Not one whale is found with the ancient Devonian fish, and semi-aquatic mammals like Ambulocetus (in many ways a "a mammalian crocodile") and Basilosaurus (an early whales with small remnant legs), show up in succession, and well before modern whales.
This Correlated History of the Earth poster provides an a more in depth look at this order or animals, plants, tracks, etc found throughout the Geological layers.
Learn about the Geologic Column
http://jan.ucc.nau.edu/~rcb7/verde.html (includes pictures of the column).
The Geologic Column as it's used in Petroleum Geology
Responses to Creationist Arguments
Response to creationist claims about human artifacts being found in older strata (all false)
Creationists want you to believe that the biblical flood created meandering canyons like this, meaning that a body of water both cut through so much sediment in such a vertical manner AND did so in this meandering fashion.
Homologous structures are displayed throughout the animal kingdom. Not only do we see this among the world's existing fauna, we see its development in the geological record as we see more and more modern animals branching off of the lower orders. This makes perfect sense in light of Darwinian evolution, which is limited to modifying structures that are already in place. On the other hand, a creator isn't limited to following the same basic tetrapod pattern over and over. Hence, homologous structures is what Evolutionary theory would predict, whereas the "common creator/designer" argument represents nothing more than an ad hoc explanation for Creationists.
*When I debated Dr. Jackson, he stated "And there is no model for how nostrils could move gradually through the brain, to the back of the head to make the whale blowhole. Think about it."
Of course, he retracted the statement when I explained to him that the blow hole is not "behind the brain."
Certain Isotopes have stable decay rates, each of which can be used to date the strata they are found in. The different decay rates would not match up when dating both 50 MYO and 500MYO rocks if these decay rates were not stable. Geochronologists test and cross-test these results over and over. Creationists sources try and argue that the historical stability of isotopes is only assumed. The problem with this argument is that it avoids the fact that the "assumption" is proven by the constant cross-referencing of isotopes of different decay rates, as well as other dating methods (ie. tree ring and carbon dating). Furthermore, the effect of so many isotopes decaying at a rate fast enough to have decayed to such a rate within 6,000 years (the Young Earth Creationist Time Scale), the build up of heat would make life on Earth impossible. Not all isotopes can be dated.
Learn about Radiometric Dating
Responses to Creationist Arguments
This can date most once living things (assuming they weren't exposed to factors that affected it's carbon levels, like petroleum) that lived between 150YA to 50,000YA. Anything that's lived within the last 150 years is subject to the levels of carbon produced by the Industrial Revolution and Nuclear Testing. Also, anything that's touched Petroleum (like Hovind's infamous snail example) will also have an affected carbon rate. Things that can be cross-checked historically always check out just fine; the dead sea scrolls and mummified people and bulls for example. There is no reason to doubt the validity of Carbon Dating. The 'examples' creation 'scientists' love to use are generally samples that can't be reasonable dated for one of the above reasons. In fact, once you read about and understand radiometric isotope dating, then read creationist arguments, it becomes clear that many if not most creationists confuse the two and don't understand the difference (that's a polite way of saying "they don't know what they're talking about").
Learn about Carbon Dating
Perhaps the biggest Young Earth Creationism blunder lies in is the fact that written communication has existed for some 5,000 years now and Archaeologists have developed an overall chronology of earlier civilizations. Egyptologists can trace Egyptian history as far back as 7,000 years ago, which is not only further back than Adam and Eve, but incompatible with the idea of civilization being wiped out by a flood 4,500 years ago.
Because human settlements tend to lie in coastal areas, these early civilizations no doubt experienced floods, which to them, may have appeared to encompass the entire world. While Creationists tend to view the multiple flood stories as evidence for the Biblical flood, they appear to automatically discount the possibility that Genesis story is actually borrowed from older flood stories. Furthermore I have always found it culturally ethnocentric that the multiple instances of these flood stories must somehow exist as evidence for Noah's flood, while the characters in the ancient Sumerian and Greek floods are no doubt fictional.
BBC - History - Egyptians
The Evolution of Creationists
Not to be outdone by the comparatively intellectually honest creationists who
have evolved into Intelligent Designists (which more or less makes them Theistic
Evolutionists depending where they individually draw the line), the stubborn
Creationists are simply denying the validity of certain fossils by claiming
we've only found a fraction of what's actually been recovered. This seems especially
true in whale evolution. They want you to believe that Pakicetus is represented by nothing more than a partial skull
and Ambulocetus is fragmentary.