Natural World - Season 23 Episode 5
Profile of the hammerhead shark, which has until now been shrouded in mystery as no-one could understand why its head is such a strange shape, or how it might help the creature's survival. Marine biologists in Hawaii explain how the fish utilises the unusual shape to give it a unique, deadly weapon in the oceans. Narrated by Ian Holm
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 23 : Episode 12004-10-14
- Season 23 : Episode 22004-10-21
- Season 23 : Episode 32004-11-18
- Season 23 : Episode 42004-11-25
- Season 23 : Episode 52004-12-02
- Season 23 : Episode 62004-12-09
- Season 23 : Episode 72004-12-16
- Season 23 : Episode 82005-01-05
- Season 23 : Episode 92005-01-19
- Season 23 : Episode 102005-01-26
- Season 23 : Episode 112005-02-03
- Season 23 : Episode 122005-02-09
- Season 23 : Episode 132005-02-15
