Lesson 20 – Animals Can Harm Us

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Read About How Animals Can Harm Us


Read the vocabulary terms to understand the reading better.

Allergies are your body’s reaction to certain plants, animals, foods, or insect bites.

Diseases are an unhealthy state where something bad happens to the body or mind.

Pests are plants or animals that carry disease, cause disease, or destroy crops.

A rash is when the skin breaks out in red spots from an allergic reaction or illness.

Animals Can Harm Us

Read about how animals can harm people.


Some animals are dangerous. 

They can bite, scratch, or claw people.

It is important to be safe around dogs and prevent bites.


Ticks and mosquitoes can spread diseases that make people sick.


Some people sneeze and have trouble breathing when they are near certain animals. They have an allergy to the animal. Insect bites and bee stings can cause a rash or itching.

Some people are allergic to cats.


Some animals harm crops. Deer eat plants in gardens. Birds eat fruit such as berries. Insects such as beetles and grasshoppers eat grains. Termites and ants eat wood in our homes.

Now Show What You Know!

Complete some questions about the reading selection by clicking “Begin Questions” below.