When surprised, they struck hard blows with their hoofs, and they bit with their sharp teeth. But if there was a chance to get away, they always ran when they were attacked. THINGS TO DO _Name all the animals you know that can climb trees. What kind of feet do they have?_ _Name all the animals you know that have hoofs. Tell all you can about these hoofs._ _Notice the foot of a horse, a cow, a dog, or a cat, and model it in clay._ _What pet do you have that is like a wolf?_ XVIII. THINGS TO THINK ABOUT What tools do you know how to use? What do you use them for? How do you think that people did their work before they had tools? What tools do you think the Tree-dwellers needed? How do you think they learned to make them? _How Bodo Learned to Make Tools and Weapons_ Bodo did not have any tools or weapons. Nobody knew how to make them. But he had learned to use his hands. He used them to catch small animals. He knew how to creep up softly. He knew how to wait patiently. He knew just when to grasp the animal. Bodo used his hands to gather berries and nuts. He used them to pull up roots. He used them to rake the acorns together. [Illustration: "_Sometimes Bodo threw stones_"] He used them to scoop small things up from the ground. Bodo knew how to strike with his fists. He knew how to kick with his feet. Sometimes he threw stones. Sometimes he threw sticks. Sometimes he struck with a stick in his hand. He could strike harder blows with a stick than he could when he struck with his fist. Sometimes it hurt him when he struck with his fist. It did not hurt him when he struck with a club. Bodo had many enemies. He had to take care of himself. He felt safer when he had a club in his hand. [Illustration: _The stick Bodo used_] THINGS TO DO _Show what Bodo used for a rake._ _Show what he used for a scoop._ _Show how he caught wild animals._ _Draw a picture of Bodo catching a squirrel._ XIX. THINGS TO THINK ABOUT Have you ever used a hammer? What are our hammers made of? How do you think people learned to make hammers? Why did Bodo need a hammer? What do you do with your knife? How many kinds of knives have you seen? How do you think people cut their food before they had knives? What do you think they used for their first knives? _Bodo's Hammer and Knife_