In this continuation of the look at speciation we began in the last episode, we will tackle some more "not so obvious" causes.

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It's been awhile since we took a look at speciation and its causes. In the first of two parts we'll jump right in with Allopatric speciation.

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For decades, ever since we first began to study and understand our cell's biology and the coding sequences of DNA, we saw bits and pieces that didn't seem to make sense. Strings of DNA that didn't appear to do anything at all. It appears, they do quite a lot.

Evolution Talk is also a book! You can find links to Amazon, Barnes & Noble and others on the front page of EvolutionTalk.com, or call your local bookstore and ask them to order a copy.

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Written, Produced, & Narrated by: Rick Coste

In 1893, the German zoologist Wilhelm Haacke published Design and Inheritance. In it, Haacke introduced the concept of orthogenesis. According to Haacke, changes in organisms are directed toward perfection.

Evolution Talk is also a book! You can find links to Amazon, Barnes & Noble and others on the front page of EvolutionTalk.com, or call your local bookstore and ask them to order a copy.

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Written, Produced, & Narrated by: Rick Coste

Consider this episode a memorial to the millions of extinct animals that once walked the earth long before we inherited it. Like fragments of novels and poems that have been found over the years, hinting at what might have been, we have fossils and shards of bones to tell us what once was.

Evolution Talk is also a book! You can find links to Amazon, Barnes & Noble and others on the front page of EvolutionTalk.com, or call your local bookstore and ask them to order a copy.

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Written, Produced, & Narrated by: Rick Coste

Great idea don't spring out of a vacuum, but they do sometimes seem to. In this episode we take a look at a few.

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Written, Produced, & Narrated by: Rick Coste

Evolution Talk - the book is now available at your local bookstore!

If you love the show, and have listened to the last 100 episodes this book is for you. If you're a student, or want to learn more about evolution by natural selection it's the perfect introduction. If you're a teacher, your class will love it. Just like the show, it's meant to be accessible and easy to grasp.

You can find links to Amazon, Barnes & Noble and others on the front page of EvolutionTalk.com, or call your local bookstore and ask them to order a copy.

What came first, the chicken or the egg? It's an age old question. How about another one? What stored genetic information first? DNA or RNA?

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Written, Produced, & Narrated by: Rick Coste

Colossal Biosciences hopes to reintroduce the wooly mammoth to the world, thousands of years after the last one walked the earth. If successful they will have paved the way for a "de-extinction pipeline" for other lost species.

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Written, Produced, & Narrated by: Rick Coste

Evolution by Natural Selection has assisted many amazing symbiotic relationships. Here's one you may not be familiar with, and which you're a participant in. It involves your gut microbiome.

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Written, Produced, & Narrated by: Rick Coste

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