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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.

 

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.

 

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.

 

Bad Science and Weak Theology?

Many scientists feel that the ID movement is an attempt to locate gaps in our scientific knowledge and then to presume those gaps can only be filled by intervention of an external intelligence. It is important to note that ID leaders do not view their work this way.

 

Distinctions, Part 2: "God as a Scientific Theory?"

Over the past two decades, the intelligent design movement has been working diligently to offer a parallel version of modern science, one that can scientifically show God at work in creation.

 

Fine-Tuning: A Deeper Story?

In this video, five notable scientists (John Polkinghorne, David Wilkinson, Rodney Holder, Peter Williams and Graham Swinerd) offer their perspective on the strengths and limitations of the fine-tuning argument as a pointer to God.

 

Ard Louis on Intelligent Design

In this short video, physicist Ard Louis expresses some doubts about Intelligent Design, noting that his primary resistance to the movement is based on theological grounds rather than science.

 

Reducing Irreducible Complexity, Part 3

I am asked all the time to explain, in a nutshell, why irreducible complexity is not a valid argument in favor of intelligent design. However, I have never heard anyone put it in a more cogent form than Oxford biophysicist Ard Louis in this video.

 

What Do You Mean When You Say "Evolution"?

In this video clip, Oxford University biophysicist, Ard Louis posits that one of the reasons Christians are hostile to evolution is that they latch onto a particular definition, which puts it in conflict with their theological convictions.

 

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.

 

Are gaps in scientific knowledge evidence for God?

Every field of science has unanswered questions and gaps in our understanding. Scientists typically view these as open research questions. Others sometimes argue that if science can’t explain how something happened, then God must be the explanation. Such arguments are called “god-of-the-gaps” arguments. The risk in these arguments is that science is always developing. If gaps in scientific knowledge are the basis for belief in God, then as scientists fill in the gaps, the evidence for God disappears. The God of the Bible, however, is much more than a god of the gaps. Christians believe that God is always at work in the natural world, in the gaps as well as in the areas that science can explain.

 

What does the fossil record show?

Fossils provide a unique view into the history of life by showing the forms and features of life in the past. Fossils tell us how species have changed across long periods of the Earth’s history. For instance, in 1998, scientists found a fossil showing an animal at the transition from sea creature to land creature. This tetrapod had a hand-like fin, confirming a prediction of evolutionary biology. Though the fossil record does not include every plant and animal that ever lived, it provides substantial evidence for the common descent of life via evolution. The fossil record is a remarkable gift for the study of nature.

 

What is the "fine-tuning" of the universe, and how does it serve as a "pointer to God"?

Fine-tuning refers to the surprising precision of nature’s physical constants, and the beginning state of the Universe. To explain the present state of the universe, even the best scientific theories require that the physical constants of nature and the beginning state of the Universe have extremely precise values.

13 resources found