The Common Descent Podcast

About 10% of the Earth’s land surface is currently covered in persistent glacial ice, but for most of Earth history, that number was much closer to zero. This episode, we explore what happens when ice overtakes our planet and how we investigate icy conditions of the distant past, and we’ll take a close look at the most recent (and ongoing) global climate event that we commonl...

The Sun is kind of a big deal. It is the center of our solar system, around which all other objects revolve, and its heat and light are responsible for the life-supporting conditions here on Earth. This episode, we take a close look at how the Sun actually works and what makes it different from other stars. Then, we track the lifetime of the Sun, exploring how it originally f...

Large, herbivorous mammals come in many shapes and sizes, but few are as famously unusual as camels. This episode, we explore the surprising adaptations of Old World and New World camelids, from the dromedaries of Middle Eastern deserts to the llamas of the Andean highlands. Then, we take a tour through their fossil record to investigate the many forms this family took on the...