Leicestershire Fire and Rescue Service warned people with dogs or children to be careful near frozen lakes, ponds and rivers.

BBC: East Midlands Airport: 'Heavy snow' only threat

They are marching in the American lakes, ponds and rivers.

FORBES: A New World of Exports to China

The study revealed a complex network of ponds and rivers, the largest of which occurred under the Whillans ice stream and covered an area of 500 sq km (190 sq miles).

BBC: Satellite images reveal the changes in volume of water

The theory is simple: find fish which like eating mosquito larvae and put them in ponds, rivers and wells where mosquitoes lay their eggs.

BBC: NEWS | Science/Nature | Fish eat away at malaria in India

Imagine Shanghai crabs being caught in American ponds, lakes, and rivers, without pesticides and industrial pollution, and exported to China.

FORBES: A New World of Exports to China

The swelling Mississippi overtook the ponds, and the carp, native to Chinese rivers like the Yangtze, escaped.

FORBES: Lucky Catch