Overall Winner

Predatory Pursuit Spider crabs, Leptomithrax gaimardii; Maori octopus, Octopus maorum

This unusual encounter features an aggregation of spider crabs (Leptomithrax gaimardii) and a predatory Maori octopus (Octopus maorum). The octopus was behaving like an excited child in a candy store trying to work out which crab to catch and consume – its eyes were certainly bigger than its gut! Mercury Passage, between Maria Island and mainland Tasmania

Nikon D810, 15mm f/2.8, 1/100, f/14, ISO 400, two Ikelite DS161 strobes, Nauticam housing