a tree

A tree will have a life span;
Of this I'm sure you know.
With a tiny trunk and two small leaves it proclaims
“I have sprouted; let me grow!!”
After so many years a tree grows up
Its trunk is straight and tall.
The limbs reach out exploring space:
If you climb be careful not to fall.

But after many years a tree starts to fail
And the trunk is filled with cavities.
But these become homes for all kinds of animals
And sometimes a swarm of bees.