Main content
Time of volcanoes
The Ordovician Period saw the most dramatic volcanic activity in Wales' history.
Duration:
This clip is from
Featured in...
![]()
大象传媒 Nature
Be captivated, informed and inspired by the world's wildlife.
More clips from The First 200 Million Years
-
![]()
Tracking trails
Duration: 01:32
-
![]()
Silurian seas
Duration: 01:29
-
![]()
Hirnantian ice age
Duration: 01:04
-
![]()
Spore story
Duration: 01:54
More clips from Iolo's Natural History of Wales
-
![]()
Freeze and thaw—Wales In The Ice Age
Duration: 02:45
-
![]()
Giant deer—Wales In The Ice Age
Duration: 00:53
-
![]()
Woolly beasts—Wales In The Ice Age
Duration: 01:51
-
![]()
Ancient Wales—Wales In The Ice Age
Duration: 01:31
