This is a compilation of video footage extracted from various episodes of the BBC series "Planet Earth".  There is no educational objective of including this video; it is here for three reasons:
(1) it exhibits the wide variety of shapes and sizes of trees worldwide;
(2) it has fantastic time-lapse segments showing trees and forests changing through all four seasons; and
(3) if you think your trees make you feel small, watch the scaling of redwoods in this video.

Sit back and enjoy.  (BTW, a transparent advertising bar will appear at the bottom of the screen.  Click the "X" in the bar's upper right corner to get rid of it.)

(The music is by Medwyn Goodall. Track 1 - Headwind Track 2 - Whisper On The Moors, from The Album " Anam Cara ")

Duration: 9:28.