Episode 98 – Species and Speciation

Listen to Episode 98 on PodBean, iTunes, YouTube, or elsewhere!

The study of life, past and present, revolves around the evolution, diversity, and extinction of organisms. But exactly how we group organisms and how we understand how new groups arise is a complex topic with much terminology and occasional turmoil. In this episode, we discuss Species and Speciation.

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Episode 97 – Venom and Poison

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From microbes to mushrooms, spiders to snakes, urchins to us, all life engages in chemical warfare. Toxins produced by organisms are enormously varied in their origins, functions, and evolutionary histories. In this episode, we discuss the nasty chemicals that make up Venom and Poison.

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Episode 96 – Marsupials

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Kangaroos, koalas, opossums, possums, Tasmanian devils, and their relatives … they all have a few things in common: an unusual reproductive strategy, a pouch for their young, and a shared evolutionary history that separates them from the majority of living mammals. This episode is all about Marsupials.

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Episode 91 – Frogs

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There are three living groups of amphibians, but one in particular is exceptionally diverse, occupying nearly every landmass on Earth and coming in a dizzying variety of species. From their mysterious origins to their Mesozoic diversity to their modern-day world domination, this episode explores the history of Frogs.

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Episode 90 – “Living Fossils”

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You may be familiar with the concept of organisms alive today that are relics of the ancient past, holdovers from times long ago. But this idea, misleading and poorly defined as it often is, is the source of much debate among scientists and science communicators, often revolving around the specific term we discuss in this episode: “Living Fossils.”

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Episode 89 – The Burgess Shale

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More than 100 years ago, explorers in the Canadian Rocky Mountains came across some exceptional fossils. Nowadays, that locality is famous as one of the most important fossil sites in the world for understanding animal evolution, Earth history, and fossil preservation. This episode, we talk about the incredible Burgess Shale.

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