From "Love and cooperation in living things" documentary
Bison's self-sacrifice
Birds
The miracle in birds
Golden birds
Weaver birds
Arabian birds
Polar birds
Potoo birds
The colors of birds
Booby birds
Champion birds
Why should not man deem himself self-sufficient?
The miracle of talking birds
THE LYRE BIRD’S WONDROUS MIMICKRY
SMART BIRD'S HUNTING TECHNIQUE
Camouflage in the nature: Arctic bird
Camouflage in the nature: Golden bird
Camouflage in the nature: Patoo bird
The miracle of talking birds - subtitled -
Did you know weaver birds
Pollen 1
Seed 1