The Mesolithic is the period between the end of the last Ice Age and the introduction of farming to the British Isles. Life was still nomadic, probably revolving around the changing seasons. People constructed temporary shelters as they hunted animals with newly domesticated dogs, fished and collected food along the coast and gathered berries, nuts and roots. There is also evidence that humans manipulated the landscape to exert control over the wild animals on which they largely depended. The characteristic finds of this period are tiny flint implements called microliths.