Around 400 million years ago, during a geological era often celebrated by paleontologists as the "Age of Fishes," the global ...
Fish have been around since the dawn of complex animals. They were the first vertebrates, had the first live births and were the first four-limbed animals to venture onto land. The fossil fish ...
What is a mass extinction – and how many of them have there been? Will Newton takes a look the 'big five' extinction events ...