Compulsive communicators, the. 

 - British Broadcasting Corporation,,  1981. 
 - Videocassette (VHS)(54 min.) : sd., col. 1/2 in. 
<br/><br/> Human origins are traced to Africa 3 million years ago in this programme from the "Life on earth" series. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human evolution.<br/>an--Origin.<br/>Evolution.<br/>Life--Origin.