The sun is shining on our backs. In town, we shall be paid fish for our barley. That was a song of Egyptian farmers, more than 3,000 years ago. Wall paintings in ancient tombs show these farmers at…
Scientists study animals. > A veterinarian treats animals. Learning how to make animals well can help scientists learn how to keep people well. Some kinds of animals get the same kinds of diseases…
Tetanus (lockjaw) is an acute infectious disease that causes muscle spasms and convulsions. The spasms of the jaw muscles make it difficult to open the mouth, which is why this disease is called…
Recent Comments