Evolution Basics: Darwin’s Early Observations on Biogeography
For Darwin, both of these observations (that oceanic islands lacked terrestrial mammals, and that endemic species on islands were most similar to a species on the closest mainland) had the same explanation: his hypothesis that endemic, oceanic species were the modified descendants of a colonizing species from the nearest continent.
Evolution and Christian Faith Grantees Announced
Congratulations to the 37 winners of the Evolution & Christian Faith (ECF) grants competition! ECF is a new BioLogos program designed to support projects and network-building among scholars, church leaders, and parachurch organizations.
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: Made in the Image of God: The Theological Implications of Human Genomics
This series by Denis Alexander reflects on advancements in genomics as well as their theological implications. He focuses on the relatedness of hominin genomes, arguing that this does not interfere with the image of God in humans. The image of God depends more on the capacity for relationship and covenant, not on a list of particular physical qualities. He then discusses why the recent studies of genomics provide “no grounds for genetic determinism.”
Series: Decoding ENCODE
The BioLogos Foundation explains to the findings of the Encyclopedia of DNA Elements (ENCODE) project and responds to the claims that its discoveries challenge the theory of evolution, especially regarding so-called "junk DNA".
Denisovans, Humans and the Chromosome 2 Fusion
The Denisovans, an extinct hominid group that interbred with modern humans, made the news again lately with the publication of a more detailed study of their genome. One of the many interesting findings was that the Denisovans share the same chromosome 2 fusion that modern humans have.
David Lack and Darwin’s Finches
Considering the immense popularity of "Darwin's finches", it is quite surprising to learn that Charles Darwin himself had very little to say about them. In fact, it was actually David Lack, one century later, who conducted the critical research that immortalized the finches in biology textbooks and popular lore.
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.
What Does It Mean to Be Human? A Response to Bruce Little, Part 2
Trinitarian theology and the image of God are important, non-essentialist resources to help us think about the distinct place of humanity in creation.
What evidence do we have for evolution besides fossils and genes?
Scientists have found multiple lines of evidence for evolution, not just one or two. These types of evidence are independent of each other, coming from sources as different as ancient fossils and modern genetics labs. Evidence also comes from comparing the anatomy of creatures living today. All creatures with four limbs (whether mammals, birds, or reptiles) have the same bone structure in each limb, pointing to their descent from a common ancestor. More evidence comes from biogeography. Isolated islands are missing common species found on the mainland, but are filled with many unique species that can be related by a common ancestor. Finally, evidence comes from embryonic development. As an embryo of a mammal grows, its heart develops through stages similar to fish, amphibians, and reptiles. God’s creation declares the history of life in many different ways. All these ways are pointing to a consistent picture of God creating through evolution.
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.
The Questions Update: The Image of God
Over the last two weeks, the Forum has explored the imago Dei from various perspectives. Today’s post features a preview of the updated Question, “How could humans have evolved and still be created in the ‘ Image of God’? written by Senior Web Consultant and Writer Deborah Haarsma.
The Broken Made Whole
There is a sense in which we look at Temma and we want to affirm that she is made in the image of God by denying that the image of God has anything to do with her physical, material body.
More Than Skin Deep: The Image of God in People with Disabilities
My students twinge and recoil a bit at the thought that persons with disabilities can be made in God’s image. “They just don’t look like it,” they say, zeroing in on what is physically seen.
Series: Chosen by God: Biblical Election and the Imago Dei
At the center of the theological and cultural controversy surrounding biological evolution stands the question: “How do human beings—creatures uniquely created in the image and likeness of God—fit into the scientific picture of life’s origins and development?” In this three-part series, Dr. Joshua Moritz endeavors to address this question by exploring what Scripture means—and does not mean—by the designation “image and likeness of God”.
Southern Baptist Voices: Evolutionary Creationism and the Imago Dei
I wish to question whether or not it is possible for the image of God to be produced through the evolutionary process apart from the special intervention of God.
Theory, Prediction and Converging Lines of Evidence, Part 2
We have already discussed hind limb and hair loss in whales, and now we turn to one of the remaining questions: tooth loss in the lineage leading to modern toothless whales.
What is the genetic evidence for evolution?
Darwin developed his theory of evolution by looking at scientific evidence available in the mid-1800s. Since then, the whole field of genetics has developed, adding a powerful independent line of evidence in support of evolution. Genes show how the physical traits of living things are handed down and modified from one generation to the next. By comparing the DNA of many organisms, scientists can map the relationships between species. This map is in remarkable agreement with Darwin’s predictions. The structure of chromosomes and particular genetic sequences point to the conclusion not just of common design, but common descent as well.
Is There “Junk” in Your Genome? Part 4
Now that we have covered significant ground with respect to what various classes of pseudogenes are and how they arise, we are now able to properly evaluate antievolutionary arguments put forward in an attempt to discredit these lines of evidence for evolution.
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