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Where are the Transitional Fossils?
A common argument leveled against the theory of evolution is that scientists have not been able to produce transitional fossils that show the change of one species into another. In this podcast, we address a common misconception about what transitional fossils actually are.
Series: The Human Fossil Record
In this series, James Kidder provides an intriguing study on transitional fossils and the evolutionary history of modern humans. He begins by discussing the fossil record, explaining how new forms are classified. He then explains the physically distinguishing trait of humankind—bipedalism. From the discovery of Ardipithecus, the earliest known hominin, to the australopithecines, the most prolific hominin, Kidder focuses on the discovery, the anatomy, and the interpretation of these ancestral remains.
Hominids Lived Millions of Years Ago, but How Can We Tell? (Videocast)
This BioLogos videocast addresses the age of recently discovered hominid fossils and how scientists are able to obtain those dates.
Series: The Cambrian "Explosion", Transitional Forms, and the Tree of Life
Many evolutionary critics have identified the Cambrian Explosion as a stumbling block to the theory of evolution, arguing that the “expected transitions between major invertebrate phyla are absent, and that the suddenness of their appearance in the fossil record demonstrates that evolutionary explanations are not viable.” Keith Miller argues that the Cambrian Explosion is not so problematic as these opponents claim after all.
Series: Genetics, Theology, and Adam as a Historical Person
Denis Alexander begins this five part series by discussing both what a model is and whether it is appropriate to use one when building a bridge between scientific truths and theological truths. Providing evolutionary facts about the origins of humans as well as discussing the origin and meaning of Adam in Genesis, he constructs what he calls a Retelling model and a Homo divinus model. Both approaches, he concludes, “suggest that human evolution per se is irrelevant to the theological understanding of humankind made in the image of God.”
The Flood: Not Global, Barely Local, Mostly Theological, Pt 1
Before considering the scientific data, we must first determine a rough earliest probable date for the Flood. If the Flood is an actual historical event, it must touch down in the empirical data of history somewhere.
In The Bones
I am a fan of the blog "Jesus Creed." Recently it published an interesting post about the transition from fins to limbs as evidenced by fossils of an organism trapped in sediment 375 million years ago.
It happened again this week. I received an e-mail from a student at a major university who is in the midst of a profound personal crisis.
Beginning with the End in Mind
In today's video, Oxford physicist Ard Louis discusses the famous debate between renowned evolutionary biologists Stephen Jay Gould and Simon Conway Morris over the idea of evolutionary convergence.
People often ask me why it matters so much what they think of evolution. Many parents don’t even want their kids to learn about it—evolution is like pornography, not to be trifled with under any circumstances and certainly not something to be “integrated” with the Christian faith.
The Fossil Record
There are two opposite errors which need to be countered about the fossil record: 1) that it is so incomplete as to be of no value in interpreting patterns and trends in the history of life, and 2) that it is so good that we should expect a relatively complete record of the details of evolutionary transitions within all or most lineages.
What scientific evidence do we have about the first humans?
In recent decades, scientists have discovered more about the beginnings of humanity. The fossil record shows a gradual transition over 5 million years ago from chimpanzee-size creatures to hominids with larger brains who walked on two legs. Later hominids used fire and stone tools and had brains as large as modern humans. Fossils of homo sapiens in east Africa date back nearly 200,000 years. Humans developed hearths for fire, stone points for spears and arrows, and cave paintings by 30,000 years ago. By 10,000 years ago, humans had spread throughout the globe. Genetic studies support the same picture. Humans share more DNA with chimpanzees than with any other animal, suggesting that humans and chimps share a relatively recent common ancestor. Also, the same defective genes appear in both humans and chimps, at the same locations in the genome—an observation difficult to explain except by common ancestry. Genetics also tells us that the human population today descended from more than two people. Evolution happens not to individuals but to populations, and the amount of genetic diversity in the gene pool today suggests that the human population was never smaller than several thousand individuals. Yet all humans, of all races, are descended from this group. Humanity is one family.
Teaching the Whole Controversy
Part of our goal at BioLogos is to demonstrate that we in the Christian community can and must think deeply, but also broadly, if we want to do justice to the complexity of biological life, but also to the complexity of our lives of faith.
Does the Cambrian Explosion pose a challenge to evolution?
The “Cambrian Explosion” refers to the appearance in the fossil record of most major animal body plans about 543 million years ago. The new fossils appear in an interval of 20 million years or less. On evolutionary time scales, 20 million years is a rapid burst that appears to be inconsistent with the gradual pace of evolutionary change. However, rapid changes like this appear at other times in the fossil record, often following times of major extinction. The Cambrian Explosion does present a number of interesting and important research questions. It does not, however, challenge the fundamental correctness of the central thesis of evolution.
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Series: Understanding Randomness
In this series, Kathryn Applegate addresses the concern that randomness implies the absence of God's activity and involvement in the natural world. She begins by clearing up some common misconceptions about the concept of "randomness", and later focuses on the mechanisms of the immune system to demonstrate that God works through random processes to preserve life. Far from being an indication of a "godless" universe, one might conclude that randomness is one of God’s favorite mechanisms for creating and sustaining life!
Series: Ephesians 4:1-6: A Call of Christian Unity
This series discusses the importance of unity among Christ’s believers. Ross Hastings, an expert in the areas of both chemistry and pastoral theology, is eager to see the church seek out unity rather than divisions in this science/faith interface. Unpacking Ephesians 4:1-6, he explains that unity in Christ through the Holy Spirit is the primary concern of both Jesus as seen in John 17 and Paul in Ephesians 4, making this matter pressing. He urges all believers to be in agreement that God indeed created, yet to be in dialogue over how that creative process occurred.
A Plea to My Shepherds
... I would exhort these, my fellow conservative evangelical shepherds and thinkers, to set aside all reticence and fear, emerge from anonymity, and storm the forum of discourse, engaging this most pressing matter with vigor, equanimity, and humility. In doing so, know upfront that there will be few handrails to guide; you will not be building upon an extensive precedence of published conservative thought.
Evangelicalism and Adaptation
I look my students dead straight in the eye and tell them that no matter what, debate within the intellectual sphere cannot and should not take away or diminish the importance of the personal nature of their faith. The intellect, to use a scientific phrase, while necessary for the faith, is not sufficient
Denis Alexander on Understanding Creation Theology
In this video Conversation, Denis Alexander asserts that contemporary Christians are not taking the early chapters of Genesis seriously enough.
Series: To Serve and Preserve—Genesis 2 and the Human Calling
In this series, David Buller pays careful attention to the original language and cultural context of Genesis 2, revealing that our responsibility to care for creation is a sacred task given to us by God, not merely a modern secular activity. By taking Scripture seriously, we learn that we have a God-given mandate to be diligent stewards of His creation.