Comedian Ola Dada (@showtime.dada) joins Andy, Jesse and Matt to talk about moving from Nigeria to Canada, summer nights in Alberta, Africa breaking apart faster than we thought, the true size of Africa, map projection pros and cons, the work of James McAvoy and how light during sleep can hurt your heart.

Comedian Paul Jay (@pauljaycomic) returns to the show after a 14-year hiatus to talk with Jesse and Andy about the comedy message board A Special Thing, the genius of Randy Feltface, Bobby Fingers' Depp Diorama, the surprising way that cuttlefish see color, tetrachromacy, The Baby, The Immigrant and The Guy On Mushrooms, and building a Martian home out of yeast and gelatin.

We took full advantage of our friend Katie Novotny (@katienovotnyyyyy) stuck at home recovering from surgery to get her back on the show! Her special Son of Your Dreams is free to stream on YouTube right now!

We talk about a supersonic trebuchet! A new fecal transplant story, this time for food allergies! And also if your microbiome's linked to psychopathy! Plus massively long-lived sturgeon! How other sturgeon get it on! Musician Slash getting his own snake species! How the number of species is calculated, with a bit of help from our buddy Matt Parker! And fake mermaid science!

In the Patreon bonus, there's some scientific proof of cats being dicks.