Who hasn't marveled at the fossilized remains of a dinosaur? Though their lineage lives on today in the form of birds, historically, dinosaurs were once far more diverse. Needless to say, they shaped the world around them just as much as the world shaped them, and this certainly included interactions with plants. Plant eating dinosaurs were some of the largest organisms to ever walk this earth and my guest today studies exactly that. Join the Natural History Museum in London's Dr Paul Barrett and I as we discuss herbivory in ancient dinosaur lineages. This episode was produced in part by Philip, Letícia, Ron, Tim, Carl, Lisa, Susanna, Homestead Brooklyn, Brodie, Kevin, Katherina, Sophia, Lisa, Brent, Plant by Design, Mark, Rens, Mountain Misery Farms, Bendix, Irene, Holly, Clifton, Shane, Caitlin, Rosanna, Mary Jane, Manuel, Jennifer, Sara, and Margie.
The End-Permian Extinction occurred some 252 million years ago. It has been referred to as "the day the earth nearly died. It is estimated that the world lost up to 96% of all marine species, 70% of terrestrial vertebrate species, and 83% of all insect genera alive during that time. Life on this planet took much longer to rebound than at any other time in history. Though we know volcanism played a roll in this extinct, paleontologists have always been looking for a mechanism that could connect the two. Thanks to Jeff Benca and others, we now have an idea. In this episode we talk about how weakening of the ozone layer led to massive forest declines around the globe. This in turn had serious ramifications for the rest of the biosphere. This work not only fills a big gap in our prehistoric history, it tells an alarming tale for our future if we continue to disregard habitat destruction. This is one episode you don't want to miss. This episode was produced in part by Ron, Tim, Carl, Lisa, Susanna, Homestead Brooklyn, Daniella, Brodie, Kevin, Katherina, Sami & Sven, Sophia, Plant by Design, Mark, Rens, Mountain Misery Farms, Bendix, Irene, Holly, Clifton, Shane, Caitlin, Rosanna, Mary Jane, Manuel, Jennifer, Sara, Sienna & Garth, Troy, and Margie.
It may be hard to believe but Antarctica has a green past. Throughout its history, our southern polar continent has been the home to a variety of now-extinct biomes and my guest today is responsible for uncovering the oldest of these remains. Dr. Erik Gulbranson is part paleoecologist and part paleoclimatologist and what he and his collaborators are learning from these fossilized ecosystems not only helps us understand how life responded to climate change in the past, but also how it may respond in the future. This is one you don't want to miss! This episode was produced in part by Brian, Mark, Rens, Bendix, Irene, Holly, Clifton, Shane, Caitilin, Rosanna, Mary Jane, Manuel, Jennifer, Sara, Sienna & Garth, Troy, Margie, and Laura.
Trying to piece together an accurate picture of past ecosystems requires a lot of patience and attention to detail. That is why I am so amazed by the work of today's guest. Joining us is paleoecologist Dr. Jacquelyn Gill to talk about her work on ice age ecology. The clues she uses to tell the story of these systems are surprisingly small but incredibly useful. What's more, her work can help us better understand how ecosystems are going to change as man-made climate change rages on. This is one episode you don't want to miss! This episode was produced in part by Mark, Allen, Desiree, Sienna & Garth, Laura, Margie, Troy, Sara, Jennifer, Christopher, Manuel, Daniel, John, Rosanna, and Mary Jane.