Natural World - Season 37 Episode 3
The animal kingdom possesses a fearsome arsenal - a variety of extreme weapons used in epic battles to gore, stab, crush and batter. But are they more than just instruments of deadly force? For Professor Doug Emlen, it has been his lifetime's ambition to discover the secrets of nature's arms races, what triggers them and what they can teach us about the most formidable weapons on earth - our own.
First Air Date : 1983-10-30
Last Air date : 2020-03-20
Runtime : 57 minutes
Genre : Documentary
Cast : David Attenborough, John Hannah, Juliet Stevenson
Crew : Brian Jackman (Writer), Andrew Graham-Brown (Director), Mike Birkhead (Director)
Quality : 
Subtitles :
- Season 37 : Episode 12017-03-20
- Season 37 : Episode 22017-04-07
- Season 37 : Episode 32017-04-18
- Season 37 : Episode 42017-05-15
- Season 37 : Episode 52017-06-20
- Season 37 : Episode 62017-06-28
- Season 37 : Episode 72017-10-19
- Season 37 : Episode 82017-12-28
