Hello Reader, I was trying to choose underwater photographs for my new Instagram account (Yes, I’ve been threatening to do it…) I have some big, impressive subjects: 2 metre gully sharks, the swish and sway of a pyjama shark through the kelp, the flap of a giant short-tailed ray. But, for some reason, I kept being drawn to the tiny – the things you wouldn’t even notice if you weren’t looking out for them. I chose the intricate markings of a black and white sea hare, the peacock display of the...