Photo and caption by Richard Wylie
Every year spider crabs (Leptomithrax gaimardii) move from the depths to congregate en mass in the shallow waters of Port Phillip Bay. No one knows exactly why they congregate but scientists believe its to reproduce and moult - safety in numbers. This individual decided to avoid the crowds however, and climbed a pylon under the pier - allowing me to isolate this image against the light streaming through the background.
Location: Rye Pier, Victoria, Australia