PRESS PHOTOs BY SUSAN BRYANTCharlotte Hummel of Walnutport holds Oscar the alligator while Valerie Gordan, a herpetologist with Rainforest Reptile Shows, Beverly, Mass., speaks with guests attending a reptile demonstration at the Lehigh Valley Pet Expo Jan. 28 inside the Agri-Plex at the Allentown Fairgrounds.