A continental crash that raised one of the biggest mountain chains in the Earth's history may be responsible for the explosive diversification of animals more than 500 million years ago.
'In Our Time' does Humboldt.
How Darwin correctly predicted species migration northward and upward during times of rising temperatures.
New Australopithecus afarensis fossil.
A study of prehistoric animals has revealed the crucial role of the English Channel in shaping the course of Britain's natural history