Canadian Press: Quebec aquariums and zoos are leaping to the defence of an animal that is increasingly threatened with extinction in La Belle Province and around the world – frogs. The Quebec croaker and its amphibious friends are disappearing at a massive rate, with scientists estimating that up to one-half of species worldwide are in danger of disappearing. Some 120 species of amphibians have gone extinct in recent years, scientists say. "It’s not later, it’s now," said Caroline …