taxonomy Archives

July 11, 2025July 8, 2025

The Evolution of the Bobtail Squid

Since the Scopes trial took place 100 years ago, numerous books and articles have been written in scientific journals, popular media, and other outlets regarding evolution and the biblical concept of God’s creation. We have attempted to clarify that the word “evolution” refers to an unfolding change and that it is a design feature of life on Earth. We have also pointed out that many features of living things are so complex that evolution cannot provide a reasonable explanation for their emergence through unguided gradualism. Today, we consider the evolution of the bobtail squid.

We are familiar with large animals, but often remain unaware of the intricate designs of smaller creatures that are essential for the natural world to exist. An example of this is the bobtail squid, a small creature in the coastal waters of most of the world’s oceans. They rarely reach three inches long but have eight sucker arms and two tentacles. They swim by using fins or by jet propulsion.

Bobtail Squid have a symbiotic relationship with bioluminescent bacteria. The squid supplies a sugar and amino acid solution to the bacteria, which emit light that hides the squid from predators below. Are the bobtail squid a special creation of God, or are they a product of evolution? The answer is that they are a product of unfolding change from cuttlefish.

Bobtail squid are classified in the class of cephalopods, sharing a subclass with squid and cuttlefish. Unlike modern taxonomic rankings, the groupings of animals in the Bible are very broad. Birds, for example, are just identified as fowl that fly, not robins, crows, sparrows, hawks, etc. Flightless birds such as penguins and ostriches have evolved through unfolding change over time. The waters bringing forth “every living thing with which the water teems” is another broad example from the Bible.

Humans benefit by learning about the interactions of living things on Earth. The evolution of the bobtail squid is an excellent example of what we can learn from God’s creatures and their history. God saw that His creation was “good” (Genesis 1:10, 12, 18, 21, and 25), but after He created the first humans, He declared it “very good” (Genesis 1:31). We can rejoice that we are the product of that goodness.

Reference: Wikipedia

July 7, 2025July 7, 2025

Taxonomic Ranking of Living Things

Suppose that billions of years ago, a once-in-an-eon event took place. In a primordial soup of chemical elements, some of them came together to form amino acids. Over time, some of these amino acids assembled themselves into complex organic molecules such as RNA or DNA. Eventually, a living cell formed, complete with a nucleus and cell walls. It became the first living cell capable of metabolizing and reproducing through cell division. This was the first species in the taxonomic ranking of living things.

Next, imagine that mutations and natural selection acted on this initial species, causing it to evolve into different species. Over eons, more species appeared until one developed sexual reproduction. Then, things started to accelerate. Billions of years of reproduction and speciation resulted in a completely different animal. This was no longer a new SPECIES but the beginning of a new GENUS. More billions of years later, a new FAMILY of living creatures emerged. As life diversified, new ORDERS of animals appeared, followed by new CLASSES. Eventually, new PHYLA emerged within the animal KINGDOM. The tree of life finally grew into the amazing diversity we have today.

The problem is that the narrative we described seems to be in reverse order. Scientific classification, or the taxonomic ranking of living things, aims to illustrate the progression of genetic change, or evolution. The taxonomic ranking follows: species, genus, family, order, class, phylum, kingdom. This bottom-up progression described in our narrative does not align with the fossil record.

The stages of life development seem reversed in the fossil record. Dr. Hugh Ross noted, “…in many instances, such as the Avalon and Cambrian explosions, enormous macroevolutionary changes occurred rapidly; later, over long time spans, mere microevolutionary changes occurred. Diversification of phyla occurred first, and in no time, while diversification of species and genera occurred over eons.”

In summary, the fossil record appears to show the opposite of what naturalistic evolution predicts. However, the pattern in the fossil record aligns with the biblical view that God created various kinds of animals, each capable of change and adaptation. Their genetic design allows for microevolutionary adaptations over time to address changing circumstances and environments.

Today, we observe microevolution happening naturally and through guided human breeding and hybridization. We see this clearly in dogs and cattle. Even though humans have bred dogs to be very diverse, they remain within the canine (Canidae) family and do not evolve into a new order. Many varieties of cattle exist, but they are still cattle. Likewise, fossil evidence of animals transforming into a different class or phylum is lacking.

The best explanation for the incredible diversity of life on this planet, whether in the animal or plant kingdom, is that it was designed by a wise Creator who endowed living things with the ability to adapt and change on a microevolutionary level. The taxonomic ranking of living things seems to occur from the general to the specific rather than from the specific to the general.

Reference: “Unconfirmed” by Hugh Ross in Salvo magazine, summer 2025, pages 38-41

March 12, 2021March 11, 2021

Aye-ayes Have Many Unusual Characteristics

Scientists use animal classification systems based on old evolutionary assumptions. The result is that many times an animal turns up that doesn’t fit any evolutionary model. An excellent example of this is a species of long-fingered lemurs called aye-ayes. They are nocturnal animals found only in Madagascar. Aye-ayes have many unusual characteristics giving a name that comes from a local phrase meaning something like “I don’t know.” Here are a few of the aye-aye’s traits:

1) They have large round eyes, which aid in night vision.
2) They use their continually growing incisor teeth to tear a hole in trees to reach grubs. Their teeth are so strong they can chew through cement blocks.
3) Their long middle finger is skeletal and has a ball-and-socket joint used to hook onto wood-boring grubs.
4) Their big toe is opposable to enable them to hang from tree branches.
5) They have fur with guard hairs they can raise to appear to double their size.
6) They use a unique system of foraging by percussive tapping on wood. They sense the echo with their bat-like ears to detect hollow areas where grubs are.
7) They build elaborate spherical nests made of leaves and branches.

Because of their teeth, nesting behavior, and long tail, your first guess might be that they are rodents. Despite the face of a possum, the teeth of a mouse, and the ear of a bat, they are classified as primates. This lemur is so unusual it has its own taxonomic family.

Aye-ayes have many unusual characteristics that point out weaknesses in the evolutionary taxonomic system. Systems such as cladistic taxonomy have gained weight as science discovers more animals like this in fossils and places like Madagascar. From an apologetics standpoint, it seems clear that God has created a variety of animals and given them characteristics to fill various ecological niches. Aye-ayes seem to be a special creation for a unique environment.

References: World Wildlife Federation magazine for Spring 2021, Britannica and National Geographic websites for 3/10/21.