Season 36 aired between 20 Jan 2009 and 29 Dec 2009, 17 episodes.
Episodes
E01
The Big Energy Gamble
20 Jan 2009
E02
The Incredible Journey of the Butterflies
27 Jan 2009
E03
The Spy Factory
03 Feb 2009
E04
Rat Attack
24 Feb 2009
E05
Extreme Ice
24 Mar 2009
E06
Last Extinction (Megabeasts' Sudden Death)
31 Mar 2009
E07
Doctors' Diaries (1)
07 Apr 2009
E08
Doctors' Diaries (2)
14 Apr 2009
E09
Musical Minds
30 Jun 2009
E10
Darwin's Darkest Hour
06 Oct 2009
E11
Hubble's Amazing Rescue
13 Oct 2009
E12
Lizard Kings
20 Oct 2009
E13
Becoming Human Part 1: First Steps
03 Nov 2009
E14
Becoming Human Part 2: Birth of Humanity
10 Nov 2009
E15
Becoming Human Part 3: Last Human Standing
17 Nov 2009
E16
What Are Dreams?
24 Nov 2009
E17
What Darwin Never Knew
29 Dec 2009