Science is constantly reinventing itself, revising past theories and proposing new ideas that hopefully further our understanding of the world. Copernicus proposed the heliocentric solar system, Newton had gravity, and Einstein gave us relativity. But every once in a while, a theory gets proposed that’s downright nutty. Not only that, some of these theories can persist for decades or even centuries. As these ridiculous theories hang around, sometimes they find themselves intersecting with strange moments in history. Here, I present the crazy history you’ve never heard of behind 3 ridiculous geological theories. Continue reading
Hank Greely and Jake Sherkow discuss the science, morals, and ethics of de-extinction: bringing extinct species back to life. As lawyers with an interest in biotechnologies, Hank and Jake explain how they first got involved with de-extinciton, how scientists propose to bring species back, and discuss the potential for de-extinction technology to help restore damaged ecosystems. While discussing some potential side effects of this new process, Hank and Jake recall how a man obsessed with William Shakespeare transformed the ecosystem of New England, and how de-extinction might do the same.
We revisit our conversation with biological anthropologist James Holland Jones, who explains how diseases typically spread from animal to human populations and how that might change as our planet continues to warm. He also discusses how we might prevent future epidemics with limited vaccines by looking to community structure and identifying the key bridge populations. It’s all about disease, hemorrhagic fever hopefully not included.
If we’re looking for how life will respond to rapid environmental changes, we should probably look to bacteria adapted to live in extreme environments – what scientists call extremophiles. Astrobiologist Dirk Schulze-Makuch examines the Anthropocene with thought experiments of bacteria throughout the solar system, using scientific principles documented on Earth. He discusses known extremophiles, certain problems posed by asteroid impacts, and the importance of keeping an open mind when analyzing evolutionary trajectories on Earth.