Were there dolphins flying through Heathrow today? And if so, where were they going?

There's a huge hoo-ha going on on social networking sites about rumours that six dolphins captured in Taiji, Japan were transited through Heathrow today en route to a marine park, possibly in Europe, or Saudi Arabia or...or...? Heathrow denying it, rumoured cargo carrier, Japan Airlines, denied it but then deleted their denial, DEFRA confirmed it. All very intriguing. Does anyone know more? (www.facebook.com) עוד...