As the Earth shifts to climates not seen for several hundred thousand years, we may need to look at ancient environments for clues about what could happen next.
Our new study of two whale fossils, with preserved fragments of shark teeth, suggests the modern descendants of these animals could once again roam the southern region of the North Sea, between the UK, Belgium and Denmark. Climate change may recreate the conditions that allowed the ancestors of great white sharks to hunt in these waters.
If you want information about how animals and other organisms might respond to the kind of climate changes our planet is experiencing right now, you need evidence of former responses to such changes.
