Bumblebees and honeybees are two species of bees that form colonies. The colonies of bumblebees are smaller compared to their honeybee cousins, who’s hives can house tens of thousands of individuals. But both of these colonies have complicated compositions and structures that help them thrive. For bumblebees, recent studies showed that colonies located in urban areas may actually be more successful than nests located in agricultural areas. Plus, how do bees pick a new queen? Biologist Ash Samuelson and entomologist Ramesh Sagili join Ira to get the buzz.

Plus, school is finally out! No more teachers! No more books! … Except the ones on our summer science reading list. From harvester ants to the ruts of ancient Rome, Annalee Newitz, tech culture editor for Ars Technica shares her picks written by scientists who really dig into their work. And Science Friday education director Ariel Zych sings the praises of a book about the stuff no one likes to talk about—human waste. So, act like a kid again and assign yourself a book or two from our summer science reading list. No book report required.

Plus, check out the SciFri staff’s recommendations for summertime science beach reads.