(The heading is a play on the 1970s advertising hall-of-fame slogan from the Esso gasoline commercials that said ‘there’s a tiger in my tank’). The stamps to save some vanishing species such as the tiger are not new; they were issued in 2011 already. But they were the nicest ones the post office had when I sent out something in a bubble envelope, and I couldn’t resist. (The tiger figure is part of my very limited animal figure collection). Scientists are closing in on their ability to bring extinct species back, though – even ice age mammals like the woolly mammoth. I fear the way it’s going now the poor creatures will have no ice, of course.