Dr Alvin Silverstein

Miniature Horses (Far-Out and Unusual Pets)

Tarantulas (Far-Out and Unusual Pets)

Tarantulas: Cool Pets! (Far-Out and Unusual Pets)

Hairless Dogs (Far-Out and Unusual Pets)

Rats (Far-Out and Unusual Pets)

Miniature Horses (Far-Out and Unusual Pets)

Boas and Pythons (Far-Out and Unusual Pets)

Poison Dart Frogs (Far-Out and Unusual Pets)

Potbellied Pigs (Far-Out and Unusual Pets)

Hairless Cats (Far-Out and Unusual Pets)

Hissing Cockroaches (Far-Out and Unusual Pets)

Iguanas (Far-Out and Unusual Pets)

Hermit Crabs (Far-Out and Unusual Pets)

Ferrets (Far-Out and Unusual Pets)

Smog, Oil Spills, Sewage, and More (Yucky Science)

Tapeworms, Foot Fungus, Lice, and More (Yucky Science)

Poop Collectors, Armpit Sniffers, and More (Yucky Science)

Dung Beetles, Slugs, Leeches, and More (Yucky Science)

Chocolate Ants, Maggot Cheese, and More (Yucky Science)

Snot, Poop, Vomit, and More (Yucky Science)

Plate Tectonics (Science Concepts Second)

Forces and Motion (Science Concepts)

The Food Poisoning Update (Disease Update)

The AIDS Update (Disease Update)