Vetenskapens värld - Season 2015 Episode 15
At least 5 times all life on earth has been on the verge of extinction. Some say that we are close to the sixth. In this episode the scientists take a closer look at the mass extinctions in our history. What did really happen 250 million years ago, when 95 percent of all sea-living species died out? Is there something we can learn, that we can use today, when the number of species on earth is dwindling and the eco systems are quickly changing?
First Air Date : 1971-09-26
Last Air date : 2025-03-17
Runtime : 57 minutes
Genre : Documentary, News
Cast :
Crew :
Quality : 
Subtitles :
- Season 2015 : Episode 12015-01-19
- Season 2015 : Episode 22015-01-26
- Season 2015 : Episode 32015-02-02
- Season 2015 : Episode 42014-02-09
- Season 2015 : Episode 52015-02-16
- Season 2015 : Episode 62015-03-02
- Season 2015 : Episode 72015-03-09
- Season 2015 : Episode 82015-03-16
- Season 2015 : Episode 92015-03-23
- Season 2015 : Episode 102015-03-30
- Season 2015 : Episode 112015-04-06
- Season 2015 : Episode 122015-04-13
- Season 2015 : Episode 132015-04-20
- Season 2015 : Episode 142015-04-27
- Season 2015 : Episode 152015-05-04
- Season 2015 : Episode 162015-05-11
- Season 2015 : Episode 172015-05-18
- Season 2015 : Episode 182015-05-25
- Season 2015 : Episode 192015-08-24
- Season 2015 : Episode 202015-08-31
- Season 2015 : Episode 212015-09-07
- Season 2015 : Episode 222015-09-14
- Season 2015 : Episode 232015-09-21
- Season 2015 : Episode 242015-09-28
- Season 2015 : Episode 252015-10-05
- Season 2015 : Episode 262015-10-12
- Season 2015 : Episode 272015-10-19
- Season 2015 : Episode 282015-10-26
- Season 2015 : Episode 292015-11-02
- Season 2015 : Episode 302015-11-09
- Season 2015 : Episode 312015-11-16
- Season 2015 : Episode 322015-11-23
- Season 2015 : Episode 332015-11-30
- Season 2015 : Episode 342015-12-07
- Season 2015 : Episode 352015-12-14
- Season 2015 : Episode 362015-12-21
