Articles » Biology

Dr. Jerry Bergman, who needs no introduction to readers of Dialogue, is the author of a delightful new book for families and animal-lovers and all who enjoy fascinating details from nature. Readers of Dialogue, for more than fifteen years, have been blessed with little known insights into some well-known creatures. His new book Wonderful and Bizarre Life Forms and Creation is a collection of the “best of Bergman” from Dialogue plus a few completely new chapters. The twenty-three chapters present each creature with pictures and highlights. This is an attractive and well documented book in full colour, which will inspire much reflection and discussion. Many will want to buy several copies, one for personal use, and others for those special people in their lives! Read the rest of this entry »

The media are full of accounts of how people have used their unexpected “down time” at home during the COVID pandemic. What we chose, be it bread baking or house-cleaning or crafts or whatever, obviously reflected personal preference.  As far as I was concerned, this time was a golden opportunity to do some extra scientific reading. It all began with an article in Nature that promoted an ancestral relationship for red seaweeds with an organism that was the exact opposite of all the features in red seaweeds. Perhaps I lack imagination but I could not believe that this prestigious journal had indeed published such an argument. It seemed hilarious to me. Read the rest of this entry »

One family, with one child in high school, one in junior high and one in elementary school, were going to start with just one video clip from Michael Behe. The idea was, like the thin edge of the wedge, to first catch their attention. But everyone was so intrigued, that they watched all five episodes in one sitting! Read the rest of this entry »

An interesting article appeared recently in the journal Science that suggested that bumble bees have solved a problem that plant physiologists have been working on for one hundred years! It was in 1920 that plant physiologists Wightman W. Garner (1875-1956) and Harry A. Allard (1880-1963), while working with tobacco and flowering cosmos, discovered that the correct length of day is essential for the onset of flowering in these plants. They named the phenomenon “photoperiodism,” and it is an extremely important control on the beginning of the flowering process in many plants. Read the rest of this entry »

You don’t have to travel to Africa to see beautiful creatures. Certainly Africa has amazing biodiversity. One of our daughters travelled to an east African country this past summer. In a nearby National Wildlife Park she saw zebras, lions, elephants, hippos, gazelles, giraffes, wildebeest and crocodiles. And she managed to take some spectacular pictures.

The rest of us might well declare that since we cannot go to a beautiful African wildlife park anytime soon, we are excused from conducting observations in the great outdoors. That however definitely is not the case. Even city dwellers can manage to view some wonderful wildlife nearby. Read the rest of this entry »

A careful examination of objects by both telescopes and microscopes reveals a major contrast between human-constructed objects and those designed by the Creator.  Human made objects, such as a watch, reveal more imperfections as the magnification by which they are viewed is increased.  An old-fashioned gear watch is an object of beauty when viewed by the naked eye.  Under the microscope, though, the flaws in the machining process become more apparent until, under high power, a watch looks not only imperfect, but crude.

In contrast, increasing magnification of the natural world reveals new detail and perfection.  Read the rest of this entry »

One of the pleasures of staffing a book table are the conversations that happen with people looking at the resources. On many occasions, individuals have requested an introduction to creation. Before responding, I have often inquired what the person’s interests are. If the person is interested in physics and mathematics, or in apologetics, there might be little point in showing them a work on fossils, for example. In the 1970s and 1980s, there were general introductory books like Scientific Creationism and What is Creation Science? But that was then, and this is now. There are many areas of science that were not even contemplated then, but which we have to deal with today. The good news now is that some general introductory works have appeared which can be very helpful to many people seeking insights into the issues. Read the rest of this entry »

While we may be aware of wonderful living creatures, we seldom reflect on the blessings of the material world. But the apostle Paul, way back in New Testament times in Lystra, assured his pagan audience that God provides favourable natural conditions to draw attention to himself.  While God uses material blessings to draw attention to himself, some people wonder whether evolution can be included under the umbrella of God’s providential design. Since evolution is by definition a process that involves only matter and energy, then the evolutionary process can never involve foresight or design which are non-material.  When we look at life however, we see features which demonstrate intelligent purpose and planning, thereby pointing to the work of God. Read the rest of this entry »

Hippopotamus, called hippos, are monstrous, mostly herbivorous, semiaquatic mammals native to most of Africa. Only in the Sahara Desert are they not found. Their origins have always been a problem for evolution because they  are like no other living animal. Only two extant species exist, the Nile hippo (Hippopotamus amphibius), and the pygmy hippopotamus (Choeropisi liberiensis). During the daytime they are aquatic, floating in the water world, and at the nighttime they are land animals consuming mostly grasses, soft plants, and some succulent fruit. (Macdonald,1987, p. 507) They were named from the Greek words for river horse. Read the rest of this entry »

I remember that when I was a child, we tried to grow date palms from the pits or seeds in the fruit. None ever germinated. But that was then and time has passed. When we had fresh dates (with seeds inside) at Christmas a few years ago, I decided to try again. Accordingly, I took a deep margarine tub, punctured several holes in the bottom to drain out water, and filled it with good potting soil. Then each day, as the dates were consumed, I tucked their seeds into the soil. Maybe twenty or more seeds went into the pot. And nothing happened. But I kept watering. Then after eight weeks or more, a pure white shoot about 2 mm in diameter finally appeared. It looked like a growing shoot from a corn seed, only thicker. Next day another shoot appeared. It took several days for these to turn green. Eventually we had five young seedings, each of which developed a bright green leaf. More leaves followed, one at a time. These plants are monocots, like corn and grasses and bamboo. That is why they send up only a single leaf at first. Read the rest of this entry »

Genetic information is so detailed that questions often arise as to where it came from. Genes may either be homologues to genes in other species (similar in composition to genes in other organisms and assumed to have originated from a common source), or they may be entirely different. These different genes are called orphan genes. Orphan genes (often spelled ORFan genes) are species specific genes that are significantly different from all other known genes, and are thus genetically isolated from the enormous set of genetic possibilities. Read the rest of this entry »

During his second lecture at Creation Weekend 2018, Dr. Gordon Wilson stimulated our appreciation of the creation with his presentation entitled “The Magnificence of the Mundane” The words in the title, he pointed out, are actually contradictory. While the word “magnificence” communicates excitement, the term “mundane” suggests that something is boring or dull. But what he wanted to share with us is that God’s work in creation is amazing, displaying God’s wisdom and finesse (Ps. 104:24). And in this context, we are told that King Solomon, full of wisdom, spoke about trees, herbaceous plants, beasts, birds, reptiles and fish (I Kings 4:33). Read the rest of this entry »

Dr. Gordon Wilson’s presentations at Creation Weekend 2018 were extremely well received. The first lecture dealt with natural evil. Mankind has long pondered why our beautiful creation is so full of cruelty and death. Indeed our ecology as it is now, runs on death. And many creatures survive entirely by consuming other creatures. The big question, Dr. Gordon Wilson declared, is how this situation came to be since God created everything in an unfallen state, all of it very good. Moreover, Scripture tells us that there was no physical death, animal or human, before the fall. All animals were vegetarian. Read the rest of this entry »

Tree sloths are one of the strangest families one could imagine and seem to have very little in common with any other animal kind (Edmonds, p. 38). They are the world’s only inverted quadruped (Cooke, p. 52). Sloths are almost comically slow-moving mammals, deliberately moving so slowly that it looks like a movie of them is being played in slow motion. Neither prodding nor threats will make them move much faster, partly because when on the ground, their small legs are so weak that they have to drag their heavy middle along the surface (Cooke, p. 51). A tortoise would easily beat them in a race. Their cruising speed is a mere 0.19 miles per hour, but they can climb a tree at a fairly good clip, for a sloth that is.  They often sleep, or appear to sleep, one cannot always tell, about 10 hours a day in trees in the Central and South America rain forests. In contrast to most mammals, they are neither strictly nocturnal nor diurnal, but frequent nappers instead (Hoke, p. 88). Read the rest of this entry »

Margaret Helder has developed a guide to enhance the learning opportunities and appreciation of the message in her book (which is to encourage everyone to critically evaluate scientific pronouncements). For each chapter there is a brief overview statement. Brief paragraphs follow for each subsection in each chapter with key concepts introduced. There follows for each chapter a list of questions, many of them involving the key concepts. The next section provides detailed answers for each question. A sure to be popular section follows on resources. These are provided under topical headings. Books, articles (all obtainable) and especially video clips on-line, are certain to be useful for any biological studies, not just for this book. Lastly for each chapter, a section on extension is provided.  This booklet of about 60 pages, will be available on line (free download) and in hard copy. Inquire through our website for your copy as soon as it is available.