Human beings think they are the strongest animals on Earth. But here we read the surprising story of bacteria and viruses and the places they can live, how fast they can grow and how dangerous they can be. Bacteria and viruses can kill millions of people in just a few years. Read more about them here (1510 words)
Illustrated English short stories at 5 levels with glossaries and audio. Reading and listening practice for English learners.
Our graded readers help people learn English through reading and listening for pleasure.