Sexual Encounters
Narrated by Robert Powell
From crabs that use semaphore to birds of paradise that turn upside down - this far-ranging tour of sexual diplomacy in the animal world reveals some of the extraordinary and varied rituals employed in courtship.
Adapted from a film by john SPARKS Written by CAREY NEWSON
Presented by DEREK ANDERSON BBC Bristol
Book: Wildlife Through the Camera. £10.25 from booksellers
* Subtitles on Ceefax page 170