The Tree House

by Johann Wyss We soon found four large casks, made of sound wood and strongly bound with iron hoops. These were floating with other things in the water in the hold. We managed to fish them out and...

Why tree bark is rough

Bark is a tree's skin. It is tough and hard and protects the soft, inside part of the tree. A tree trunk grows from the inside out. Each year, a ring of new, soft wood grows around the trunk,...

Trunks and tails

Wouldn't it seem strange to have a hand on the end of your nose? But an elephant has a sort of hand on the end of its nose. The elephant's trunk is its nose. And at the end of the trunk are one or...