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Lizards and amphibians have long been known to speciate on smaller islands, but large mammals and birds typically need more space.

It could allow them to quickly conquer new niches and it may even be a major method by which lichens speciate.

The cichlids share their lakes with other families of fishes, but only cichlids have managed to speciate so extensively and so fast.

Clearly, there are powerful forces that drive life-forms to differentiate, to speciate.

Like life, rocks on Earth evolve and “speciate.”