How many smell receptors does a human have? How many smell receptors does a dog have?
According to the text, how do animals help humans stay healthy?
Why are guide dogs important for people who are blind?
What is the main idea of the text "Animal Heroes"?
What are dogs trained to do in dangerous situations?
How can animals be heroes?
What kind of people do guide dogs help?
What can guide dogs help people do?
How can dogs save people after an earthquake or fire?