Tag: foramen magnum

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Walking Upright: Unique to Humans

Walking Upright: Unique to Humans

Those who reject belief in God assume that humans evolved mechanically and that there was no need for a creator. Unfortunately, the media promotes stories that cater to those who dismiss faith in God, making it easier for them to identify as “none” when asked about their religious beliefs. A recent article is an example of not fully explaining the design required to enable walking upright. 

A Reuters News Agency article by Mike Blake titled “How Humans Evolved to Walk Upright” fails to mention a critical design feature for walking upright. The article discusses a study of pelvis designs in primates by Harvard University evolution biologist Terence Capellini. It suggests that the shape of the human pelvis explains how humans walk upright. However, upright posture involves more than just the pelvis.

The opening into the skull that connects the spinal cord to the brain is called the foramen magnum (Latin for “great hole”). It is positioned at the center of the human skull but located towards the rear in other primates. Besides the pelvis, the foramen magnum’s position is an essential part of the design that supports bipedalism, or walking upright on two legs. The human pelvis also plays a crucial role in forming the birth canal that allows the passage of babies with larger brains. The position of the foramen magnum is an essential component of the design that enables bipedalism, or walking upright on two legs.

The Reuters article mentions that researchers identified over 300 genes involved in the design that enables walking upright. The lead author of the study stated that it is not just a single gene but many DNA regulatory elements that must work together to accomplish what seems so simple to humans. Chimpanzees sometimes walk on two legs, but it requires more effort because they lack the unique human design features. Birds, kangaroos, and a few other animals walk on two legs, but they do so because of anatomically different designs.

Bipedalism grants humans the ability to use our hands for carrying objects, using tools, creating art, raising and cooking food, while also allowing us to observe our surroundings from a higher vantage point. We can walk and run long distances because of our distinctive body design. Was this unique design merely an accident of natural selection, or the work of an intelligent Creator?

— John N. Clayton © 2025

References: reuters.com, nature.com, and britannica.com

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Superstar Lucy and Anthropology

Superstar Lucy and Anthropology
Lucy Fossil (Australopithecus afarensis)

American Scientist magazine called Lucy “Paleoanthropology’s Superstar.” Lucy (Australopithecus afarensis) is a hominid fossil found in 1974. Paleoanthropologist Donald Johanson named it Lucy because the Beatles song “Lucy in the Sky with Diamonds” was being played on the radio that year. Lucy had a brain size of 450 cc. A modern human’s brain is between 950 cc and 1800 cc, depending on sex and location. What is special about superstar Lucy?

Lucy stood about three feet seven inches tall, weighed around 60 pounds, and had a pelvis similar to a chimpanzee. Lucy’s limbs were close to the ratio of a monkey, with the femur and humerus being about the same size. In humans, there is a 2:1 ratio between these two bones. The opening into the skull through which the spinal column sends its messages to the brain is called the foramen magnum. In a human, that opening is centered in the middle of the skull, allowing a normal vertical position. In a monkey, the foramen magnum is in the back of the skull, so vertical standing is difficult. In the case of Lucy, the foramen magnum is not in the center of the skull and not in the very back of the skull. Vertical motion and standing would have been possible, but walking long distances would be difficult.

Graduate students and anthropologists have used superstar Lucy for fundraising, with many getting support for field research. In the 50 years since Lucy’s discovery, researchers have found many other hominid fossils in better condition than Lucy. The theory of human evolution 50 years ago was a tree with something like Lucy at the base. The newer models are that hominoid history is more of a bush than a tree.

So, where do Adam and Eve fit into all of this? The Bible says that man was formed “from the dust of the Earth … and man became a living being”. The Hebrew used here is “nephesh,” which the Hebrew lexicon says means “animal soul.” The passage does not say how long God took to do that or what process He used. We can understand some of what God did by looking at the fossils. What separates the first human is not his body. Our body chemistry is the same as other forms of life. What sets us apart is our creation in God’s image.

Genesis 1:26-27 describes the unique creation of man – not his physical body. “Let US create man in OUR image” refers to the Father, Son, and the Holy Spirit.” In other words, the image of God refers to our spiritual makeup. It isn’t our brains or our bodies that make us unique and special. All humans are created in God’s image with a spiritual aspect that can last eternally. The physical body will return to the dust from which it came (Genesis 3:19), but our spiritual body (soul) is not subject to the physical laws that govern all other life on Earth.

As anthropologists focus on superstar Lucy, The big question is, “When will we recognize the unique beauty of all humans and stop killing each other?”

— John N. Clayton © 2024
Reference: “Paleoanthropology’s Superstar” in the November/December issue of American Scientist magazine (pages 326 -327).