123 min listen
Podcast 127 - Let's Just Talk About Birds
ratings:
Length:
105 minutes
Released:
Jan 7, 2018
Format:
Podcast episode
Description
The gang celebrates the new year by just talking about birds. Specifically, they look at two papers that use the evolutionary history of birds to explore if geographic changes or ecological adaptation controlled the macroevolutionary history of birds. Meanwhile, Amanda has some technical difficulties, James becomes Legion "Destroyer of Minds", and Curt is a dick to his friends. Up-Goer Five (Amanda Edition): Today our friends look at two papers that both talk about animals that do not have hair or hard skin but rather have big pointed things on their face and can fly. The first paper looks at animals that do not have hair or hard skin but have big pointed things on their face and can fly and wants to see if these animals changed over time in and if they also changed the place they are from while changing over time. They say that most of the flying animals with no hair or hard skin but big pointed things on their face lived further down on the world until all the big angry animals with no hair that would eat them died and went away. Once all of those big angry animals were gone, the flying animals with no hair or hard skin but big pointed things on their face started moving all over the world and now live all over. They also say that they moved in a way that is easy to see and that it goes with whether it is warm or cold or wet or dry. The second paper also looks at these flying animals with no hair or hard skin but big pointed things on their face, and it talks about the "big change over time" idea. They use the big pointed thing on the animals face to tell this story. They say that the small groups of these animals changed over time in a different way than the big groups of these animals. They say that this means that the "big change over time" idea is right and that is what is going on to these flying animals with no hair or hard skin but with big pointed things on their face. References: Cooney, Christopher R., et al. "Mega-evolutionary dynamics of the adaptive radiation of birds." Nature 542.7641 (2017): 344-347. Claramunt, Santiago, and Joel Cracraft. "A new time tree reveals Earth history’s imprint on the evolution of modern birds." Science Advances 1.11 (2015): e1501005.
Released:
Jan 7, 2018
Format:
Podcast episode
Titles in the series (100)
Podcast 2 - Clocklike Clocks: This week's podcast we eventually get to talking about Molecular Clock studies dealing with early divergence times and the colonization of land... Also Christopher Lambert by Palaeo After Dark