Does the woodpecker's head hurt?
Being in the woods or in the park, you've probably heard a very characteristic knock on wood more than once. Exactly that…
Can trees speak?
Have you ever tried to say nothing for a minute, an hour or a day? Think about it, if it's possible ...
Why are the trees green?
Exactly. Why? Could nature have painted them in some other color? What's so special is the color ...