Main content
Why having a 'bird-brain' might not be a bad thing
Martin explains the neural density of a chimp and crow brain
Duration:
This clip is from
Featured in...
![]()
Winterwatch highlights—Winterwatch
The best wildlife moments from Winterwatch 2018
More clips from Winterwatch
-
![]()
Drama at the grey seal colony
Duration: 05:33
-
![]()
The waterfowl of Walthamstow Wetlands
Duration: 04:51
-
![]()
The winter flower that provides for bumblebees
Duration: 05:10
-
![]()
The search for the elusive bittern
Duration: 06:35
