BERLIN, April 28 -- More than 1,000 toads have puffed up and exploded in a Hamburg pond in recent weeks, and German scientists have no explanation for it. The pond water has been tested, but its ...

Why are toads puffing up and spontaneously exploding in northern Europe? It began in a posh German neighborhood and has spread across the border into Denmark. It's left onlookers baffled, but one ...

A mystery of exploding toads has turned many people into armchair zoologists this week. Amphibians in a previously obscure German pond have reportedly been blowing up in their thousands, leaving a ...