Anna Rivera, 5, of Winnetka has a tree frog on her hand during David Stokes' annual visit to Glencoe Library with his Laughing with the Animals program. | Joel Lerner~Sun-Times Media

David Stokes and his tree frogs paid a visit to the Glencoe Library with his Laughing with the Animals program on March 28. | Joel Lerner~Sun-Times Media

Mia Latinik, 6, of Glencoe, smiles with a tree frog on her fist at David Stokes' annual visit to the Glencoe Library with his Laughing with the Animals program on Wednesday, March 28. | Joel Lerner~Sun-Times Media

David Stokes holds a bullfrog at the Glencoe Library during his Laughing with the Animals program. | Joel Lerner~Sun-Times Media

David Stokes explains that the female is larger than the male so he can ride on the back of his mate during the reproduction process during his annual visit. | Joel Lerner~Sun-Times Media

David Stokes and a snapping turtle pay a visit to the Glencoe Library . | Joel Lerner~Sun-Times Media

Four-year-old Dylan Hostert of Glencoe tests the blinking reflexes of a bulfrog at the Glencoe Library with his Laughing with the Animals program on March 28 . | Joel Lerner~Sun-Times Media

David Stokes holds a bullfrog at the Glencoe Library during his Laughing with the Animals program. | Joel Lerner~Sun-Times Media

Onyka Rosien 3,(top) and Zoe Harvey, 3, both of Glencoe, touch a box turtle during David Stokes' visit to the Glencoe Library with his Laughing with the Animals program on Wednesday, March 28, 2012 . | Joel Lerner~Sun-Times Media

Zoee Rae Shepherd, 3, of Glencoe, touches a box turtle David Stokes pays a visit to the Glencoe Library with his Laughing with the Animals program on March 28 . | Joel Lerner~Sun-Times Media

As David Stokes carries some snakes around, they are met with fascination and revulsion. | Joel Lerner~Sun-Times Media

David Stokes talks about fox snakes with one on his face. | Joel Lerner~Sun-Times Media

Jessica Rosien of Glencoe holds a fox snake, "I've always been afraid of snakes" she said. Parents volunteer to hold the snakes for David Stokes during his Laughing with the Animals program on March 28 . | Joel Lerner~Sun-Times Media

Zoe Harvey, 3 (left), and Onyka Rosien, 3, both from Glencoe, interact with a fox snake at the Glencoe Library during the Laughing with the Animals program on March 28 . | Joel Lerner~Sun-Times Media

Zoe Harvey, 3, of Glencoe, waits for a snake to lick her hand during the Laughing with the Animals program on March 28 . | Joel Lerner~Sun-Times Media

Mom Bella Boury of Glencoe plays along with her daughters Anais 2 (in her lap), and Loulou, 5 during David Stokes' visit to the Glencoe Library with his Laughing with the Animals program on March 28. | Joel Lerner~Sun-Times Media

David Stokes had real and toy frogs on his head at the Glencoe Library with his Laughing with the Animals program on March 28. | Joel Lerner~Sun-Times Media

Alison Lucchesi, 6, of Glenco,e points at her father after David Stokes asked her if anyone ever called her a genius at the Glencoe Library with his Laughing with the Animals program on March 28 . | Joel Lerner~Sun-Times Media