Natural World - Season 12 Episode 4
Looks at the extraordinary properties of frog and toad skin, showing how it enables them to survive hostile environments. Amphibian skin contains many chemical compounds, including antibiotics, fungicides, anti-viral agents and toxins, which serve as built-in barriers against infection and protection from predators. Scientists in America have even identified an anti-cancer agent in the skin of certain amphibians. One sequence reveals a dangerous and illegal craze in California for toad licking - the skin of some toads contains hallucinogens so powerful that the US Drug Enforcement Agency puts it in the same class as heroin. The programme features toad and frog species from Britain and the continents of Africa, America, Asia and Australia.
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 12 : Episode 11994-02-20
- Season 12 : Episode 21994-02-27
- Season 12 : Episode 31994-03-06
- Season 12 : Episode 41994-03-13
- Season 12 : Episode 51994-03-20
- Season 12 : Episode 61994-03-27
- Season 12 : Episode 71994-04-03
- Season 12 : Episode 81994-04-04
- Season 12 : Episode 91994-04-17
- Season 12 : Episode 101994-04-24
- Season 12 : Episode 111994-05-08
- Season 12 : Episode 121994-05-15
- Season 12 : Episode 131994-05-22
- Season 12 : Episode 141994-05-29