Humorous illustrations accompany information about substances which are harmful, including bacteria, plants, animals, and chemicals. Also tells how to help someone who has been poisoned.

Discusses different kinds of poisonous substances, animals and plants.

Identifies poisons around the home, poisonous plants and animals; discusses the poisonous effects of certain drugs and of chemicals and germs in food; offers advice on avoiding these dangers and how to save a poisoned person.

What's tiny, cute, and colorful--but also very deadly? It's the poison dart frog! These critters come in many dazzling colors to remind other animals that they are not good to eat. Just touching a poison dart frog can be enough for someone to absorb its deadly neurotoxins. Readers get a chance to see these highly toxic creatures up close in their rain forest habitats of South and Central America. Readers also learn how poison dart frogs got their name and how scientists are using their poison in modern medical applications.