In this episode, Macken talks to wildlife biologist Tyus D. Williams. During this long and wide-ranging conversation, they covered some of the following topics: The ethics of mosquito sterilization, conservation, pseudonaturalism, scientific contrarianism, Tyus's jaguar research, and tigers that eat bears.  Tyus is a researcher and science communicator whose work with jaguars has been published in National Geographic. You can interact with him on his twitter, @ScienceWithTyus, and learn from his #SciQFriday. If you want to thank him for coming on the show, you can buy him a cup of coffee.