From the bugs in our backyards to prehistoric reptiles, animal biology and behavior are full of puzzles and conundrums. On this episode, we hear from experts solving the mysteries of the animal kingdom. Guests include paleontologist Dean Lomax, biochemical engineer Saad Bhamla, herpetologist Gowri Shankar and conservation biologist Patrícia Medici. TED Radio Hour+ subscribers now get access to bonus episodes, with more ideas from TED speakers and a behind the scenes look with our producers. A Plus subscription also lets you listen to regular episodes (like this one!) without sponsors. Sign-up at: plus.npr.org/ted