Natural World · SEASON 3
Peacocks, Parasites And The Puzzle Of Sex
Episode 6 · 1984-12-09
- Documentary
Episode overview
What's the purpose of sex? To protect us from disease! Brian Leith unravels the intricate puzzle of sex and finds that: Males seem to be a waste of time and energy - many of the successful plants and animals (like the weeds in your garden) do without them altogether! Big animals - from polar bears to human beings - always have males as well as females - for a very good reason! The vital clue to the mystery lies in parasitism and infection. Out of the puzzle emerges a sparkling new theory of sex that looks set to keep biologists buzzing for years.
50 minutes
Season 3 episodes
1. Among The Wild Chimpanzees1984-11-04
2. One Man's Island1984-11-11
3. Invaders Of The Truk Lagoon1984-11-18
4. The Desire Of The Moth1984-11-25
5. A Question Of Space1984-12-02
6. Peacocks, Parasites And The Puzzle Of Sex1984-12-09
7. Land Of Ice And Fire1984-12-16
8. The Lost World Of Medusa1984-12-23
9. Kinabalu - Summit Of Borneo1985-01-06
10. Wild Ireland1985-01-13
11. Water - A Fresh Look1985-01-20
12. Battle Of The Leaves1985-01-27
13. The Year Of The Rat1985-02-03
14. Through Animal Eyes1985-02-10
15. Within A Garden Wall1985-02-17
