Volunteers survey the lizards each year to monitor their population and distribution.

BBC: Partnership protects sand lizard at Prestatyn beaches

And another survey - the UK Business Confidence Monitor - found confidence improved in the last three months, suggesting the UK will return to growth in the April-June quarter.

BBC: UK companies remain optimistic, surveys suggest

"Occupy" is the top word of 2011, according to the Global Language Monitor's annual global survey of the English language.

BBC: The rich: Exactly what does the terminology mean?