



Why do animals cooperate?
Daniel and Kelly talk about the evolution of cooperation, and why humans struggle so much with isolation.

Listener Questions #30
Daniel and Kelly answer questions about sentience, chicken eggs, and the early Universe!

Why does the Universe minimize action?
Daniel and Kelly dive into one of the most important but mysterious principles of physics: least action.

Rabies
Daniel and Kelly talk about rabies, which results in very few deaths in the United States but is a neglected tropical disease - taking approximately 60,000 lives globally each year.

Bonus Episode: History Daily - The First Reported Case of the Spanish Flu
Here’s an episode of a show we think you’ll love. It’s History Daily which tells the fascinating stories of what happened “on this day” in history. New episodes come out every weekday. In this episode, it’s March 11, 1918. A US army cook becomes the first person diagnosed with the Spanish Flu, sett…

Listener Questions #29
Daniel and Kelly answer questions about bark beetles, ambipolar fields, and gray hairs!

Can cosmic rays corrupt computers?
Daniel and Kelly talk about how computers store information, and how cosmic rays might flip some vital bits.

What is interspecific brood parasitism?
Daniel and Kelly talk about interspecific brood parasites - which are species that sneak their eggs into the nests of other, unsuspecting species. How do they get away with this?

Listener Questions #28
Daniel and Kelly answer questions about black holes, duplicate organs and bubble Universes!

How fast are we moving?
Daniel and Kelly slow down to understand what velocity really means, and how much we have of it.