Main content
![](https://ichef.bbci.co.uk/images/ic/640x360/p014crx6.jpg)
The elusive octopus
Brian gets face to face with the most intelligent invertebrate in the World – the octopus.
Duration:
This clip is from
More clips from Expanding Universe
-
Making the eye
Duration: 02:49
More clips from Wonders of Life
-
Evolution of the senses—Learning Zone, Episode 2
Duration: 06:11
-
Evolution of sight—Learning Zone, Episode 2
Duration: 07:00
-
Size and gravity—Learning Zone, Episode 2
Duration: 10:20