Friends & RivalsVideo Cassette - 1991
Many animals find it advantageous to live in groups, and their communities work more efficiently if they have some form of social structure. Inevitable squables over food, nesting places, arguments over mates must be settled with a minimum expenditure of time and energy.
Publisher: New York : Ambrose Video Pub., c1991.
Characteristics: 1 videocassette (VHS) (60 min.) :,sd., col. ;,1/2 in.