Where There Is No Light
Evolution Talk24 Huhti 2023

Where There Is No Light

In 2015,a spelunker named Joachim Kreiselmaier discovered a troglobite, a species that lives in underground environments, in the Danube-Aach cave system in South Germany. This small, pale fish had an elongated body, large nostrils, and minuscule, non-functional eyes. It was the first species of cave fish found in Europe and was related to loaches from the nearby Danube River. These cave fish lost their eyesight and pigmentation not because they stopped needing them, but due to evolution by natural selection.

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Mary Anning

Mary Anning

In 1811 , or 1812, a young girl by the name of Mary Anning, along with her little brother, happened upon an incredible find while digging around the cliffs of Lyme Regis in England. It was a skull. A ...

22 Helmi 201613min

Rosalind Franklin

Rosalind Franklin

It's safe to say, and very few would disagree, that without Rosalind Franklin the double helix structure would not have been discovered when it was, nor perhaps by the same team of discoverers.

8 Helmi 201614min

An Interview With Emma Darwin

An Interview With Emma Darwin

Way back in Episode 30 I stepped into a time machine and traveled back to 1869 in order to interview Charles Darwin. This time around I brought someone forward in time... his wife Emma Darwin.

25 Tammi 201614min

Convergent Evolution

Convergent Evolution

Convergent evolution has shown us that nature will find similar solutions under similar conditions. So too might it be on other planets. Life might not look that much different that it does here

18 Tammi 201613min

Cladistics

Cladistics

A cladogram will show those animals that share similar form and structures. It's not about animals which have evolved from one another. In this episode we are going to look at clades and cladistics. W...

11 Tammi 201612min

An Interview With Jonathan Tweet

An Interview With Jonathan Tweet

Jonathan Tweet has authored a very remarkable book for children. He wasn't just trying to make evolution and its concepts easier to understand for kids in elementary school, Jonathan was shooting for ...

4 Tammi 201616min

Are We Still Evolving?

Are We Still Evolving?

There are some who say that evolution by natural selection, at least when it applies to you and I, is no longer a driving force. The argument is that we are no longer evolving and that we've pushed na...

28 Joulu 201514min

Your Brain

Your Brain

Over the course of billions of years a small region of specialized cells began to develop sensory organs. These light sensitive cells slowly developed into eyes. Behind them another organ began to dev...

21 Joulu 201519min

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