http://www.caymannewsservice.com/science-and-nature/2011/06/02/blues-star-new-nature-tourism-attraction

looks like the truth will be here shortly...

"Meanwhile, a recent press article in the Czech Republic suggesting that a blue iguana had been acquired by the Prague zoo has set Burton and the recovery team something of a detective challenge. Burton told CNS that the zoo officials have been very co-operative and have agreed to send blood and dna samples from the iguana which will be sent to partners of the recovery programme in San Diego to be processed before being passed on to other experts in Puerto Rico for analysis.

Once he has a dna profile of the iguana Burton said the team may be able to work out ‘who his daddy is’ and possible single out its relatives. Once the team has some ancestry they may be able to get to the bottom of how the blue, if it is in fact a genuine blue, wound up in the Czech Republic."