The Late Devonian Extinction
In Our Time11 Mar 2021

The Late Devonian Extinction

Melvyn Bragg and guests discuss the devastating mass extinctions of the Late Devonian Period, roughly 370 million years ago, when around 70 percent of species disappeared. Scientists are still trying to establish exactly what happened, when and why, but this was not as sudden as when an asteroid hits Earth. The Devonian Period had seen the first trees and soils and it had such a diversity of sea life that it’s known as the Age of Fishes, some of them massive and armoured, and, in one of the iconic stages in evolution, some of them moving onto land for the first time. One of the most important theories for the first stage of this extinction is that the new soils washed into oceans, leading to algal blooms that left the waters without oxygen and suffocated the marine life.

The image above is an abstract group of the huge, armoured Dunkleosteus fish, lost in the Late Devonian Extinction

With

Jessica Whiteside Associate Professor of Geochemistry in the Department of Ocean and Earth Science at the University of Southampton

David Bond Professor of Geology at the University of Hull

And

Mike Benton Professor of Vertebrate Paleontology at the School of Life Sciences, University of Bristol.

Episoder(1081)

The Death of Stars

The Death of Stars

Melvyn Bragg and guests discuss the abrupt transformation of stars after shining brightly for millions or billions of years, once they lack the fuel to counter the force of gravity. Those like our own...

7 Jul 202258min

Hegel's Philosophy of History

Hegel's Philosophy of History

Melvyn Bragg and guests discuss ideas of Georg Wilhelm Friedrich Hegel (1770 - 1831) on history. Hegel, one of the most influential of the modern philosophers, described history as the progress in th...

23 Jun 202252min

Comenius

Comenius

Melvyn Bragg and guests discuss the Czech educator Jan Amos Komenský (1592-1670) known throughout Europe in his lifetime under the Latin version of his name, Comenius. A Protestant and member of the U...

16 Jun 202256min

Tang Era Poetry

Tang Era Poetry

Melvyn Bragg and guests discuss two of China’s greatest poets, Li Bai and Du Fu, who wrote in the 8th century in the Tang Era. Li Bai (701-762AD) is known for personal poems, many of them about drinki...

9 Jun 202246min

The Davidian Revolution

The Davidian Revolution

Melvyn Bragg and guests discuss the impact of David I of Scotland (c1084-1153) on his kingdom and on neighbouring lands. The youngest son of Malcolm III, he was raised in exile in the Anglo-Norman co...

2 Jun 202250min

Early Christian Martyrdom

Early Christian Martyrdom

Melvyn Bragg and guests discuss the accounts by Eusebius of Caesarea (c260-339 AD) and others of the killings of Christians in the first three centuries after the crucifixion of Jesus. Eusebius was ...

26 Mai 202253min

Olympe de Gouges

Olympe de Gouges

Melvyn Bragg and guests discuss the French playwright who, in 1791, wrote The Declaration of the Rights of Woman and of the Female Citizen. This was Olympe de Gouges (1748-93) and she was responding ...

19 Mai 202249min

Homo erectus

Homo erectus

Melvyn Bragg and guests discuss one of our ancestors, Homo erectus, who thrived on Earth for around two million years whereas we, Homo sapiens, emerged only in the last three hundred thousand years. ...

12 Mai 202251min

Populært innen Historie

rss-dette-ma-aldri-skje-igjen
rss-katastrofe
henrettelsespodden
historier-som-endret-norge
historier-som-endret-verden
aftenposten-historie
rss-nadelose-nordmenn-gestapo
med-egne-oyne
rss-benadet
sektledere
rss-strid-de-norske-borgerkrigene
historiepodden
rss-frontkjemperne
rss-gamle-greier
rss-historiske-romanser-svik-drap-og-kjarlighet
taakeprat
liberal-halvtime
vare-historier
virkelig-grusomt
historiepodden-ww2