January 9, 2019

How do we get sick from viruses?

Most viruses are frail little things (unlike bacteria and fungi, viruses aren’t even alive) that can multiply only inside a living host (including animals, plants, and […]
January 9, 2019

Why are germs bad for us?

These microorganisms hitch a ride into our bodies on the food we eat, in the air we breathe, or through a variety of other methods. Once […]
January 9, 2019

What is the power of ten?

Our decimal number system – which is based on the numbers one through ten – was inspired by the ten fingers (and toes) of your ancestors. […]
January 9, 2019

From which our tongue is imprinted?

Like a fingerprint, the tongue has its own shape and texture, and its tiny bumps and ridges are distributed in a way that is uniquely yours. […]