Prehistoric marine life of around 380 to 360 million years ago showing three carnivorous species (Dunkleosteus Stethacanthus Cladoselache spp.)
Prehistoric marine life of around 380 to 360 million years ago showing three carnivorous species (Dunkleosteus, Stethacanthus, Cladoselache spp.). Dunkleosteus, the largest, dark grey fish, measured up to 10 m. The Stethacanthus shark had an anvil-shaped dorsal fin, and Cladoselache at upper right was another shark, sleek and swift, resembling the present-day mackerel sharks
Grey mangrove (Avicennia marina), New South Wales, Australia
Grey mangrove (Avicennia marina), found extensively along the coast. Mangrove wetlands have a unique fauna and support adjoining estaury fauna, eg. populations of fish and migratory wading birds, by providing detritus and nutrients for invertebrates that the waders and fish eat. Highly salt tolerant, the salt is actively eliminated through special glands in the leaves. New South Wales, Australia
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Hermit crabs are shell-less creatures that use dead shells for protection. As hermit crabs grow, they must exchange their shell for a bigger one. Suitable empty shells are not always available and hermit crabs frequently fight over an attractive shell. Scientists have even see hermit crabs size up each others shells and then make a swap, but this is rare.
New South Wales, Australia
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