Where There Is No Light
Evolution Talk24 Apr 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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Episoder(165)

Homo Naledi 2020

Homo Naledi 2020

Quite a few episodes back, I produced a show that looked at a new hominin species discovered in 2013. This history-changing discovery happened when paleoanthropologist Lee Berger, assisted by cavers R...

8 Des 202013min

Evolution Does Not Produce Perfection

Evolution Does Not Produce Perfection

Natural selection isn't perfect. It only cares that something works. If it works and is not harmful to its host, then that something is passed on.     For show notes and more, please visit https://Evo...

24 Nov 202011min

Is Evolution Random?

Is Evolution Random?

There is more than random mutations when it comes to evolution by natural selection. You also have to look at other variables outside of a genetic mutation. Variables such as the environment the organ...

10 Nov 202012min

Series 2 Update

Series 2 Update

Please join me for a brief update on the show, it's future, and what you can do to help.

3 Nov 20201min

The  Second Law of Thermodynamics

The Second Law of Thermodynamics

Evolution by Natural Selection is a beautiful theory.  But as wonderful a theory as it is, it does have its detractors.  One argument states that evolution violates the second law of thermodynamics.  ...

27 Okt 202011min

The Human Eye

The Human Eye

Evolution by natural selection can build complex features through small, incremental changes. But can it build an eye?

28 Jan 20209min

Denisovans

Denisovans

Caves hide many things.  Be it shards of glass, arrowheads... or bones.  It's to whom these bones might have belonged to which often leads us on a path to great discoveries... and forgotten 'cousins'.

21 Jan 20208min

Survival of the Fittest Part 2

Survival of the Fittest Part 2

Consider this a 'lost episode' of Evolution Talk.  In it I talk with Stephanie Keep of BiteScis.org about the origins and misconceptions around the term 'survival of the fittest'.

15 Jan 202012min

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