On July 20, 1969, astronaut Neil Armstrong became the first person to walk on the moon. Over the next 3 years, 11...
When the air is very cold, water at the surface of the ocean freezes, forming sea ice. Parts of the Arctic Ocean are...
Whooping cough is a very contagious respiratory disease, caused by a bacterium called Bordetella pertussis. Babies <3...
Springtails are tiny, six-legged animals that you meet every day, but hardly notice. They can survive in big cities, on...
Have you ever walked around a forest or park, and noticed signs saying things like: “Do not Pick Flowers” or “Do not...
Did you ever notice that dead leaves never accumulate in forests? For that service, we can thank a cleaning team of...
Fallen branches, logs, and tree stumps are a valuable habitat in forests, giving food and shelter to many organisms...
In 1993, an outbreak of the bacterium Escherichia coli made over 700 people ill across the United States. A special...
You might not expect it, but the brain is always changing—it adapts itself to good and bad life experiences. We call...
Have you ever had a sore throat, cough, or fever? All of us have felt badly at least once in our lives! A doctor may...
When we think of microbes that can make us sick, it is usually bacteria that cross our minds first. We tend to forget...
Humans use land to grow crops for food, and the farming methods we use can influence the organisms that live in the...
