The word 'biodiversity' is often bandied about as shorthand for 'lots of lovely animals and plants'. We probably think of African plains teeming with herds of antelopes, zebra and wildebeest, a jungle cacophonous with crickets, monkeys and birds, or perhaps a coral reef that looks like a still from Finding Nemo.
But that's because most of us are a little shallow when it comes to the species we co-inhabit this planet with. We get overexcited by the big things, the cuddly things, and the wow! things.