Mesophile

Okay kiddo, so let me explain mesophile to you. You know how there are tiny living things that we can't see without a microscope, like bacteria? Well, they can live in all sorts of different places, like in the soil, water or even inside your tummy.

Now, these bacteria can have different preferences for temperature. Some like it really hot, like in a volcano, and some like it really cold, like in Antarctica. But there are others that like it just right, like how Goldilocks found a bowl of porridge that was "just right." These bacteria are called mesophiles.

Mesophiles like to grow at temperatures that are not too hot and not too cold. It's like when you take a bath and you don't want the water to be too hot or too cold, but just right. This temperature range is usually between 20 to 45 degrees Celsius, which is like a nice warm summer day, but not too hot where you need to wear sunscreen or get heatstroke.

So basically, mesophiles are bacteria that like to live in temperatures that are just right, and not too hot or cold, like baby bear's porridge.