A colony of endangered newts is being relocated for the 2012 Olympics at a cost of £70,000, it has emerged.
Numbers of the newts have been declining in the UK
About £450 - the equivalent of renting a double room for a month in the area - will be spent on moving each newt to make way for a temporary cycle circuit.
The great crested newts will be placed in a safe area within the new facility in Hog Hill, Redbridge, east London.
The London Development Agency had to ensure the newts' safety as the creatures are protected by law.
The new circuit will replace the Eastway Cycle Circuit in Stratford, east London, which will become the Olympic Velopark.
Great crested newts are the largest species of newt in Britain.
Their numbers have declined in the UK over recent years, due to the destruction and pollution of their breeding sites and terrestrial habitat.
It is hoped work will start on the new circuit so it is ready in time for the new year.