Jaws!
Evolution Talk29 Aug 2022

Jaws!

Just what does the act of chewing have to do with brain size and evolution? Perhaps nothing or everything. A team of researchers is helping us to understand exactly how much energy is involved when we use our jaws.

For show notes and more, please visit https://EvolutionTalk.com

Written, Produced, & Narrated by: Rick Coste

Episoder(165)

Hominins: Sahelanthropus tchadensis

Hominins: Sahelanthropus tchadensis

We begin our exploration into hominin history with an introduction to what is arguably the oldest hominin fossil yet found.  Does Sahelanthropus tchadensis represent our earliest hominin ancestor or i...

30 Jan 20239min

Hominins or Hominids

Hominins or Hominids

When talking about our ancient anscestors the question often comes up over how we refer to them.  Are they hominins or hominids?  It's a good question and it depends on how it is being used and what "...

23 Jan 20235min

Walk This Way

Walk This Way

When did our ancestors descend from the trees and walk on two legs instead of four?  How exactly did bipedalism develop?  We have some ideas but that's all they are - ideas.  We may never know, but we...

16 Jan 202310min

Return of the Naledi

Return of the Naledi

Our study of the Homo Naledi continues to surprise us.  In December 2022, Professor Lee Berger announced yet another insight into the mystery surrounding the presence of the Naledi in the Rising Star ...

9 Jan 202312min

A Spandrel in the Works

A Spandrel in the Works

In 1979 Stephen Jay Gould and genetecist Richard C. Lewontin presented the paper "The Spandrels of San Marco and the Panglossian Paradigm: A Critique of the Adaptationist Programme". What do spandrel...

2 Jan 202310min

The Eclipse: A Watchmaker

The Eclipse: A Watchmaker

In Part 4 of a 4 Part Series on "The Eclipse of Darwinism", we take a look at William Paley's watch analogy and how it evolved into another explanation for the abundance and intricacies of life around...

26 Des 20229min

The Eclipse: Mutationism

The Eclipse: Mutationism

In Part 3 of a 4 Part Series on "The Eclipse of Darwinism", we take a look at "Mutationism".  Can a new species evolve in a single step or is it a series of gradual, accumulated changes as Darwinian e...

19 Des 202211min

The Eclipse: Neo-Lamarkism

The Eclipse: Neo-Lamarkism

In Part 2 of a 4 Part Series on "The Eclipse of Darwinism", we take a look at "Neo-Lamarkism" as proposed by Jean-Baptiste Lamark.  Proponents hoped it would push Darwinian evolution aside as the prin...

12 Des 202211min

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