Why does the tiger hugs a tree?

Yo it's weekend, yeah!  Loosen up people, here's a silly joke for you.

Why does the tiger hugs a tree?

1. The tiger is taking an afternoon nap.
2. The tiger takes the tree as a remote partner.
3. The tiger is making a mark on the tree.

Have you made up your mind?  Good!  Here is a possible answer.  

What is yours?