Evolution of tetrapods
The evolution of tetrapods began about 400 million years ago in the Devonian Period with the earliest tetrapods evolved from lobe-finned fishes. Tetrapods (under the apomorphy-based definition used on this page) are categorized as animals in the biological superclass Tetrapoda, which includes all living and extinct amphibians, reptiles, birds, and mammals.
2 episodes
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Feathered dinosaurs
Melvyn Bragg and guests discuss theories about dinosaur feathers. Which ones had them, what sorts of feathers were they and where were they found on their bodies?
26 October 2017
Featuring: Mike Benton, Steve Brusatte, Maria McNamara
The Fish-Tetrapod Transition
Melvyn Bragg and guests discuss the great evolutionary change that gave rise to all the land animals on Earth with a backbone, when some fish developed limbs, lungs and necks.
20 October 2022
Featuring: Emily Rayfield, Michael Coates, Steve Brusatte