Evolution Talk

Rick Coste

Everything you wanted to know about evolution by natural selection in short, easy to digest, episodes. Hosted, and produced by writer Rick Coste.

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167 episodes
Updated July 20

Episodes167

Newest first

Feb 23, 2015 · 18 min
Robert Chambers
Robert Chambers' masterpiece was titled 'Vestiges of the Natural History of Creation'. In it he explained how everything evolved. Everything from simple, less complex forms, to more complex forms over time.
Feb 16, 2015 · 18 min
The Case of Patrick Matthew
Patrick Matthew published 'On Naval Timber and Arboriculture' in 1831. There were a few positive reviews but they were somewhat tepid in their praise. Only a couple reviewers happened to notice something else that Matthew had mentioned in his book. A certain passage that appeared in the book's appendix. This passage would would later catch the eyes of Charles Darwin.
Feb 9, 2015 · 12 min
The Work of WC Wells
William Charles Wells, in no uncertain terms, pointed out that mankind is not immune to nature's ability to modify an organism's features over time.
Feb 2, 2015 · 18 min
Unlucky Lamarck
Jean Baptiste Lamarck's mechanism for evolution was wrong, as history shows, and that fact has haunted his memory ever since. But ideas and theories have ways of being resurrected and, in recent years, there are hints out there that Lamarck wasn't completely off base when he proposed his theory for the evolution of species.
Jan 26, 2015 · 16 min
Erasmus Darwin
Erasmus was a country physician. He believed that women should have access to the same education that men did, and that slavery should be abolished. He also believed that life evolved from a single filament that wiggled out of the mud in the distant past.
Jan 19, 2015 · 13 min
Hutton's Hypothesis
James Hutton saw the power of natural selection, but he didn't see how it could eventually, over vast spans of time, mold an animal into something completely different. That would have to wait until Charles Darwin entered the scene over 50 years later.
Jan 12, 2015 · 16 min
Diderot's Dream – Updated
Diderot devoured the written word. It was food for his mind and he couldn't get enough of it. He was ravenous when it came to ideas. Especially when those ideas took him into places that others feared to tread.
Jan 5, 2015 · 20 min
Of Mermaids and Men
Benoit de Maillet believed that life, all life, came from the sea. And not only did it come from the sea, but it continued to evolve into different species as it encountered different environments. To present these ideas would be dangerous to him so he wrote it as a work of fiction called Telliamed.
Dec 29, 2014 · 14 min
Lucretius – Evolution's Poet
In the first century BC the Roman poet Lucretius wrote On the Nature of Things. A poem with 7400 lines of verse that covered everything from the tiniest particles of matter and how they move, as well as the nature of time and space, consciousness, mortality, and the arrival of life from animals to man.
Dec 22, 2014 · 15 min
The Father of Zoology
Aristotle actually came close to explaining natural selection, 2200 years before Charles Darwin and Alfred Russel Wallace did.
Dec 15, 2014 · 13 min
Darwin and God
Charles Darwin questioned everything when it came to the origin of species and the evolution of life here on earth. That questioning led him into some pretty dark places. As he grew more and more certain that nature was fully capable of producing the abundance of life around us without the assistance of a deity, the more he became afraid to say anything on the subject.
Dec 8, 2014 · 15 min
Darwin or Design
As a young man, the more Charles Darwin learned about nature the more he began to question things. If species were immutable, meaning they never changed, then how was it that breeders were able to change the forms of dogs or pigeons? What if something similar occurred in nature? According to William Paley nature required a designer. Charles began to think that Nature was the designer. A blind designer with no goal in mind at all.
Dec 1, 2014 · 13 min
Darwin's Doubts
Throughout his life Charles Darwin suffered bouts of anxiety and often went off alone by himself to think. His work afforded him the perfect escape and he dove into it at every opportunity.
Nov 24, 2014 · 14 min
The Beginning: Out of the Sea
The sea was full of life a half a billion years ago. Arthropods fought to survive and there were some interesting things happening on land as well. We have here our first plants - and they spread like wildfire. The quiet life on land enjoyed by the plants looked appealing to that first vertebrate that poked its head out of the water as it supported itself with its new backbone and fins.
Nov 17, 2014 · 11 min
The Beginning: An Arms Race
As predators evolved to better catch their prey, their prey evolved unique and efficient ways to avoid being eaten. It was because of this sudden arms race that we see the proliferation of body forms that mark the Cambrian Era. The real winners were the Trilobites.
Nov 10, 2014 · 12 min
The Beginning: Multicellularity Rules
The reason natural selection had such a grand old-time with multicellular organisms is because it gave it something to select for. These organisms increased in size, moved into new areas for food, and protected themselves against the environment. It is during this period that some peculiar forms began to emerge.
Nov 3, 2014 · 15 min
The Beginning: Sexual Reproduction
One day, millions of years ago, something occurred between two unsuspecting eukaryotes. When they bumped into one another something magical happened. They both left that encounter slightly different than they had been before. What passed from one to the other was a few microscopic bits of genetic material. Natural selection had new toys to play with.
Oct 27, 2014 · 13 min
The Beginning: Cyanobacteria
3.5 billion years ago microbial organisms appeared on the earth. These organisms combined, split, and combined some more, until the formation of microbes and single-celled algae. One of these single-celled algae-like organisms were cyanobacteria.
Oct 20, 2014 · 12 min
The Beginning: Life
In the beginning the Earth wasn't exactly a hospitable place. It was hot, volcanic, and oxygen was a rare commodity. So the question now is how did life emerge from these conditions? We are still asking this 4.6 billion years later. Darwin proposed a primordial pond that was teeming with the just the right materials for life to form. If so, what happened in this little pond 3.9 billion years ago set the stage for everything the followed.
Oct 13, 2014 · 15 min
Only A Theory
Charles Darwin had a hypothesis was that animals evolved due to a process he called natural selection. He strengthened his hypothesis with tests and observation. Evolution by natural selection has held up to every test. It is because of this that it long ago graduated from being a hypothesis to being a theory. It is a valid explanation for the fact of evolution.