Blue-speckled Nudibranch, Dendrodoris denisoni Blue-speckled Nudibranch (Dendrodoris denisoni, length 50mm) from Wellington Point, Moreton Bay Nudibranchs (naked-gilled sea-slugs) and marine flatworms include some of the most colourful and beautiful of sea creatures. Many have bright and elaborate colour patterns as spectacular as those seen in some butterflies. Like butterflies these colour patterns serve to warn-off predators that they are toxic and taste foul, and if eaten it may be their last meal! These creatures may produce their own toxins or get them from their diet. Some nudibranchs feed on fire corals and keep their stinging cells to use for their own defense, whereas other nudibranchs and flatworms are not toxic but use the colour patterns of toxic species to pretend to be dangerous and warn-off predators (mimicry).

Queensland Museum's Find out about... is proudly supported by the Thyne Reid Foundation and the Tim Fairfax Family Foundation.